Best Fat Burner Supplements That Actually Work.

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People searching for Best Fat Burner Supplements That Actually Work often feel frustrated after eating clean and working out hard without seeing real results. Many people struggle to lose weight even when they do everything right, which is why finding Best Fat Burner Supplements That Actually Work has become so important for anyone serious about fat loss.

We talked to experts like Jillian Robillard, MS, RD, LDN, and tested products ourselves. We looked at safety, ingredients, and how well they work. Remember, these supplements are not a magic fix. They can help with hunger, energy, and metabolism, but you still need to eat well and exercise.

Among the products we reviewed, Mitolyn stood out for its combination of clinically studied ingredients and stimulant-balanced formula designed for sustainable fat loss.

As you read, you’ll get honest reviews of popular weight loss supplements. We’ll share the science behind them and what to expect. Whether you’re looking for something with caffeine or without, we’ll guide you to the best options and help you avoid false promises.

Table of Contents

Best Fat Burner Supplements That Actually Work can support appetite control and metabolic activity when combined with proper diet and exercise.

  • Fat burners can support appetite control and metabolism but won’t replace diet and exercise.
  • Look for clinical backing, transparent labels, and third-party testing like USP or NSF.
  • Common helpful ingredients include green tea extract, caffeine (when appropriate), protein, and soluble fiber.
  • Safety matters: consult your healthcare provider if you have medical conditions or take medications.
  • Realistic expectations: modest weight benefits when combined with lifestyle changes.

Clinical research shows that high-quality fat burner supplements can produce modest but consistent weight-loss results over time.

Understanding how fat loss pills work helps set realistic goals. These supplements include thermogenic, appetite suppressant, and metabolism booster types. They are tools to support diet and exercise, not quick fixes.

Ingredients such as green tea extract, caffeine, protein, and soluble fiber are commonly found in Best Fat Burner Supplements That Actually Work and are supported by scientific studies.

Thermogenesis increases heat and calorie burn. Ingredients like caffeine, capsaicin, and grains of paradise are common. Jacked Factory Burn XT combines Capsimax with caffeine for this effect.

Other products boost fat oxidation and mobilization. L-carnitine helps transport fatty acids for energy use. 1st Phorm offers high-dose L-carnitine products for this purpose.

Appetite suppression reduces calorie intake. Ingredients like 5-HTP, soluble fiber, and high-protein diets increase satiety. Some studies show modest weight loss with soluble fiber.

Metabolic modulation affects resting metabolic rate and insulin sensitivity. Green tea extract, berberine, and forskolin show small effects. These effects build up over time with consistent habits.

Gut and microbiome shifts also play a role. Certain probiotics have shown small effects on weight and waist in studies. The impact is usually small and specific to the strain.

Always look for transparent labels, clinical dosing, and third-party testing when choosing any fat-burning supplement.

Expect small, gradual effects over weeks and months. High-quality trials show a few pounds of extra loss with diet and exercise. These are supportive, not transformative.

Time is key. Noticeable changes usually take about eight weeks or more with consistent use. Green tea extract and berberine trials often report benefits around this time.

Individual results vary. Genetics, sex, age, diet, activity level, medications, and menopausal status affect results. This means everyone responds differently.

Before buying any supplement, make sure you see the full breakdown. We analyzed the ingredients, the science, and real user experiences.

Read now: Mitolyn Supplement Review: Is It Legit or Just Another Scam?

Safety and medical advice are crucial. Always consult a doctor before starting supplements, especially with prescription drugs or medical conditions. Supplements can’t replace prescription therapies like GLP-1 agonists when needed.

ActionCommon IngredientsTypical Effect
ThermogenesisCaffeine, capsaicin (Capsimax), grains of paradiseSmall increase in calorie burn; supports short-term fat loss
Fat oxidationL-carnitineMay aid fatty acid transport and usage during activity
Appetite suppression5-HTP, glucomannan, psyllium, protein supplementsReduced calorie intake through increased satiety
Metabolic modulationGreen tea extract (EGCG), berberine, forskolin (ForsLean®)Minor changes to RMR and insulin sensitivity over weeks
Microbiome effectsSpecific probiotic strainsModest reductions in weight and waist in select studies

Realistic expectations are essential, because supplements work best when paired with lifestyle changes.

You want to know about ingredients that really work. This guide covers the top compounds backed by science. It also talks about how to choose supplements wisely.

Caffeine and combined caffeine + green tea extract

Caffeine boosts your energy and can make workouts more intense. This helps you burn more calories. Adding green tea extract to caffeine can lead to a bit more weight loss in some studies.

Make sure you don’t take too much caffeine. Aim for less than 400 mg a day. High doses, like in Jacked Factory Burn XT, can add up if you drink coffee too.

Green tea extract (EGCG)

Green tea extract, especially EGCG, has shown to help with weight loss. Studies suggest you might lose 2–3 pounds over weeks with the right dose. Many supplements, like those from Legion and Transparent Labs, include green tea.

Talk to a doctor if you’re worried about liver issues with green tea extract. It’s rare but can happen. Use it with a healthy diet and exercise for best results.

Protein and protein supplements

More protein helps keep muscle when you’re losing weight and makes you feel full. Whey and pea proteins are good choices, especially with strength training. Protein powder can replace high-calorie snacks.

Go for low-sugar protein powders and take them after workouts. This helps keep your muscles lean. Brands like 1st Phorm offer products that work well with other supplements.

Soluble fiber (glucomannan, psyllium)

Soluble fiber from glucomannan and psyllium makes you feel full and can lower calorie intake. Studies show it can lead to weight loss. It might also help reduce belly fat by making you feel fuller and improving metabolism.

Start with small amounts of soluble fiber and drink plenty of water to avoid bloating. Use it with meals or snacks to help control hunger and stabilize blood sugar.

These ingredients—caffeine, green tea extract, protein powder, and soluble fiber—are backed by science. Look for clear dosing on labels and choose products that fit your needs and goals.

Safety, side effects, and interactions to consider

Best Fat Burner Supplements That Actually Work

When looking at the best fat burners, think about safety first. Always read the labels and know the active ingredients. This helps you avoid problems later.

Common side effects

Products with stimulants can cause jitters, trouble sleeping, anxiety, and a fast heart rate. High doses of caffeine are often the main cause.

Ingredients like fiber, berberine, or L-carnitine can lead to stomach issues. You might experience nausea, bloating, or loose stools at higher doses.

Green tea extract can rarely cause liver injury. Mood and appetite changes are possible with 5-HTP. Always get medical advice when using these ingredients.

Drug interactions and medical contraindications

Caffeine and stimulant blends can interact with other stimulants and some psychiatric medicines. People with heart disease or high blood pressure should avoid strong stimulants.

Berberine can affect blood sugar and CYP enzymes. If you’re on diabetes drugs or other medications, talk to your doctor before using berberine.

High-fiber supplements might lower drug absorption. Take your medication and fiber supplement at least one to two hours apart to avoid interactions.

Pregnancy, breastfeeding, and many chronic conditions mean you should avoid most fat burners. Always talk to a healthcare provider about safe alternatives.

Quality control and regulation

Quality varies a lot. Look for clear labels that show full dosages, not just proprietary blends. This makes it easier to compare products.

We took a deep dive into the formula, clinical ingredients, and customer results to find out what’s true and what’s not.

Read the full review: Mitolyn Supplement Review: Is It Legit or Just Another Scam?

Third-party testing adds trust. Choose products certified by Informed Sport, Informed Choice, NSF, or USP. These marks confirm the product’s claims.

Manufacturing standards are important. Opt for supplements made in CGMP facilities and tested in ISO-accredited labs. Brands like Kaged and Transparent Labs show strong quality control through public testing records.

Risk AreaWho Is At RiskWhat To Do
Stimulant effects (jitters, insomnia)People sensitive to caffeine, those on stimulants, heart disease patientsStart with low dose, avoid late dosing, consult cardiologist for cardiac history
Gastrointestinal issuesUsers of berberine, high-dose fiber, L-carnitineLower dose, take with food, split doses across day
Liver riskThose taking high-dose green tea extract or with liver diseaseAvoid concentrated extracts, get baseline liver tests if long-term use planned
Drug interactionsPeople on antidepressants, diabetes meds, blood thinnersReview medication list with clinician, allow spacing for fiber-containing products
Quality concernsConsumers buying unlabeled or proprietary blend productsPick brands with third-party testing and clear quality control documentation

How to choose the best fat burner for your goals (women, men, stim-sensitive)

Choosing the right supplement depends on your goal. You might want something to boost your workout, target belly fat, or control hunger. Think about what you need before comparing products.

Best Fat Burner Supplements That Actually Work

When combined with proper nutrition and training, Best Fat Burner Supplements That Actually Work can accelerate fat-loss results safely.

For users looking for an all-in-one fat-loss solution, Mitolyn offers a balanced formula that supports energy, metabolism, and appetite management without extreme stimulant levels.

Matching formulation to goals

If you want to improve your workout, look for L-carnitine, moderate caffeine, and capsaicinoids. These ingredients help with energy and fat burning. Kaged and Jacked Factory offer products for this purpose.

For appetite control, choose supplements with soluble fiber, protein, or 5-HTP. Transparent Labs and Legion have products that help control hunger. This way, you can eat less without feeling hungry.

To change your body composition while keeping muscle, use protein supplements with strength training. This approach helps you lose fat while keeping your muscles strong.

Gender and sensitivity considerations

Women going through menopause often gain belly fat. Look for products with green tea extract, berberine, fiber, and protein. Legion and Transparent Labs offer formulas for women that are stim-free.

Men who work out a lot can handle more stimulants. Look for products with high caffeine and L-carnitine. Make sure the stimulant amounts match your body’s tolerance.

If you’re sensitive to stimulants, choose a stim-free fat burner. Transparent Labs Recomp Stim-Free is a good example. It helps with fat loss without caffeine side effects.

Practical buying tips

Make sure the product has third-party testing and certifications like Informed Sport or NSF. These ensure the product is safe and accurately labeled.

Start with a small dose for the first three days. This helps you see how your body reacts. Many products, like Burn XT, suggest this.

Avoid products with proprietary blends that hide ingredient amounts. Choose brands that list everything clearly. This way, you know what you’re taking.

Compare the price per serving and serving size. Also, consider the caffeine content. Think about the cost, how transparent the brand is, and the relevance of the ingredients. This helps you find the best fat burner for your needs.

GoalKey Ingredients to Look ForBrand ExamplesBuying Tip
Workout performanceL-carnitine, caffeine (moderate), capsinoidsKaged Clean Burn, Jacked Factory Burn XTCheck stimulant dose and timing for pre-workout use
Appetite controlGlucomannan, protein, 5-HTPTransparent Labs, Legion PhoenixPrefer full-label transparency for fiber and protein amounts
Visceral/belly fat focusGreen tea extract (EGCG), berberine, IrvingiaLegion Phoenix, brands with researched extractsLook for clinical-dose ranges and supporting studies
Stimulant-sensitiveForskolin, Paradoxine, Capsimax, green tea (low caffeine)Transparent Labs Recomp Stim-Free, Legion stim-free optionsChoose a stim-free fat burner and start low to test tolerance
Lean-mass preservationProtein supplements, BCAAs, calorie-supporting nutrientsThird-party protein brands and performance linesPair with resistance training and track protein per meal

Before comparing individual products, it is important to understand that only Best Fat Burner Supplements That Actually Work meet strict criteria for safety, ingredient quality, and clinical relevance.
The following list highlights Best Fat Burner Supplements That Actually Work that were selected based on scientific evidence, transparency, and expert testing.

Top-rated supplements tested by experts and why they stand out

Looking for the best fat burners that actually work? Our team, led by Jillian Robillard, MS, RD, LDN, and Pete, tested them. They focused on safety, label clarity, and real-world use to find the best.

Unlike generic weight loss pills, Best Fat Burner Supplements That Actually Work are formulated using clinically researched ingredient dosages.

Best Fat Burner Supplements That Actually Work

Overview of expert testing approach

Experts looked at ingredients, doses, and how they’re made. They checked for third-party tests and certifications like Informed Sport. A good fat burner lists clear doses and has proof of purity and potency.

They also tested how easy they are to use and if they cause side effects. Pete noted any jitters, sleep issues, or stomach problems. Jillian made sure they were safe and backed by science.

Key product highlights from testing

PhenQ was the top fat burner for its mix of ingredients. It has low caffeine and helps control appetite. Pete didn’t notice any side effects. But, it uses proprietary blends, which might not show exact doses.

Kaged Clean Burn was the best tasting fat burner. It’s a powder that mixes well and tastes good. It has 166 mg caffeine, L-carnitine, and Capsicum. It’s Informed Sport certified but might be too much for some.

Legion Phoenix Fat Burner without Stimulants is great for women who don’t want stimulants. It has Irvingia, green coffee, and 5-HTP. It’s tested by an ISO 17025 lab, showing it’s safe and transparent.

Jacked Factory Burn XT is the best thermogenic fat burner. It has Acetyl L-Carnitine, green tea, and caffeine. But, be careful with the caffeine levels.

Transparent Labs Recomp Stim-Free is good for those who want a stimulant-free option. It has ForsLean, Capsimax, and green tea extract. It’s Informed Choice certified and has clear dosing.

1st Phorm L-Carnitine is the best fat burner for men in powder form. It has 1,500 mg L-carnitine and other ingredients. It’s easy to stack and has flavors to help you stick to it. But, it lacks third-party testing details.

Expert testing showed the importance of safety and realistic expectations. Use these highlights to find the best fat burner for you. Look for third-party testing and clear labels to make a safe choice.

List and ranking: Best Fat Burner Supplements That Actually Work

Here is a list of top fat burner supplements that really work. They are ranked based on solid criteria. This list considers clinical evidence, safety, third-party testing, price, and user experience. It helps you find the right fat loss pills and diet supplements for you.

Mitolyn ranked highly because it combines appetite control, thermogenic support, and metabolic ingredients in a formulation designed for real-world fat-loss results.

Ranking criteria

The criteria focus on the evidence behind the ingredients, safety, and how open the company is. Ingredients like caffeine, green tea, and L-carnitine are key. Also, the safety of the products and how open the company is about testing are important.

When it comes to safety, we look at the amount of stimulants, any warnings, and reports of side effects. We also check if the company is transparent about testing and manufacturing.

Practical things like price, serving size, and how easy it is to take the supplement are considered. We also look at what experts think about the product’s taste and instructions.

Short pros/cons card for each ranked product

ProductProsCons
PhenQLow caffeine (75 mg); contains nopal cactus and Capsimax; single capsule serving; vegan‑friendlyProprietary blends limit dose transparency; pricier than some options; third‑party testing not listed
Kaged Clean BurnAvailable as powder and capsule; great taste for the powder; Informed Sport certified; balanced caffeine (166 mg)Higher price point; caffeine may be high for stimulant‑sensitive users
Legion Phoenix Fat Burner (stim‑free option)Stim‑free option available; includes Irvingia (IGOB‑131) and 5‑HTP; third‑party testing in ISO 17025 labUses some proprietary blends; three‑capsule serving can be inconvenient; higher cost
Jacked Factory Burn XTClear ingredient dosages; thermogenic profile with Capsimax and caffeine; involved in a clinical studyHigh caffeine per serving (up to 270 mg); dosing complexity; potential for jitters
Transparent Labs Recomp Stim‑FreeStimulant‑free formula; fully transparent dosages; Informed Choice certified; designed for jitter‑free useHigher price per serving; requires multiple capsules per day
1st Phorm L‑CarnitineMixable flavored powder; high L‑carnitine dose (1500 mg); easy to stack with pre‑workout or proteinContains artificial sweeteners; third‑party testing info not prominent; possible digestive side effects

Use this ranked list to compare fat loss pills and diet supplements. Look at the ingredients and how much caffeine they have. Choose products that are open about their testing and dosing.

How to use fat burner supplements safely for best results

For the best results, use Best Fat Burner Supplements That Actually Work as part of a plan. Start with a calorie-controlled diet and eat whole foods. Make sure to keep protein and fiber high to help with muscle and feeling full.

People who use Best Fat Burner Supplements That Actually Work typically report better appetite control and higher daily energy levels.

Pair supplements with regular workouts and high-intensity cardio. This helps keep lean muscle and boosts energy.

Stacking with diet and exercise

Think of fat burners as tools, not shortcuts. Use thermogenic formulas like Kaged Clean Burn or Jacked Factory as a pre-workout. They boost energy and intensity.

For appetite control, stack soluble fiber or a protein shake around meals. This reduces overall calorie intake.

When stacking with diet, keep protein intake high. Time meals to support workouts. This helps preserve muscle while losing fat.

Dosage timing and tolerance testing

Start low and go slow. Many brands suggest starting at half or single doses for the first three days. This helps assess tolerance.

Take stimulant-based supplements early in the day. Avoid them within four to six hours of bedtime to protect sleep. Space fiber supplements and certain extracts away from prescription meds to prevent absorption issues.

Follow label guidance from trusted brands like Transparent Labs and Burn-XT. Adjust based on how your body responds.

Monitoring progress and side effects

Track weight, body composition, workout performance, hunger, sleep quality, resting heart rate, and any gastrointestinal symptoms. Keep a simple log to compare trends over weeks rather than day-to-day noise.

If you notice palpitations, severe GI distress, jaundice, or other alarming changes, pause supplements and consult a clinician. Use third-party tested brands to lower the risk of undisclosed ingredients. Routinely monitor how each product affects your progress and well-being.

Regular tolerance testing and careful dosage timing help you use Best Fat Burner Supplements That Actually Work safely. Stay consistent, monitor side effects, and make adjustments when needed. This keeps both safety and results on track.

Common myths and evidence-based clarifications about fat burners

You’ve probably seen ads claiming weight loss supplements are magic. This guide aims to debunk common myths. It helps you make better choices by focusing on facts and practical tips.

Myth: fat burners are miracle weight-loss pills

Ads often exaggerate the benefits of fat burners. But, real studies show they only help a little. The results can vary a lot from person to person.

Remember, the best way to lose weight is still through diet, exercise, and sleep. Think of fat burners as helpful tools, not a quick fix.

Myth: natural equals safe

Even natural products can be risky. For example, green tea extract can harm the liver. Berberine might upset your stomach or interact with medicines. And some plants, like Irvingia, might not be safe for the long term.

Always check if a supplement has been tested by a third party. Talk to your doctor, especially if you’re on medication. This way, you can choose safer, more effective supplements.

Myth: more caffeine = better results

Caffeine can help you burn calories and feel more awake. But too much can cause jitters, trouble sleeping, and heart problems. Taking too much caffeine can be risky.

It’s important to use caffeine wisely. Start with small amounts and see how you react. Avoid caffeine close to bedtime to keep your sleep good.

Knowing these facts helps you see through the hype in the supplement world. You can find the Best Fat Burner Supplements That Actually Work safely. This way, you avoid myths and make informed choices.

Conclusion

Think of Best Fat Burner Supplements as tools to help with natural weight loss. They shouldn’t replace a healthy diet and regular exercise. Ingredients like caffeine and green tea extract, soluble fiber, and certain extracts can help a bit.

These supplements can lead to small, steady weight loss when used right. They work best when you also eat well and stay active.

It’s important to choose supplements that are safe and tested. Look for products that have been checked by third parties. Make sure they don’t have too many stimulants and talk to a doctor if you’re taking other medicines.

Always watch out for any side effects and adjust the dose if needed. This way, you can use the supplements safely and see if they work for you.

To get the most out of these supplements, eat a balanced diet, do strength training, and get enough sleep. Also, get advice from a healthcare professional. Use the list and tips above to find the right supplements for you.

Based on ingredient quality, safety profile, and real-world usability, Mitolyn is one of the most complete fat-burning formulas currently available.

If you want safe, proven, and sustainable results, choose only Best Fat Burner Supplements That Actually Work.

What are “best fat burner supplements that actually work” and what should you expect from them?

Fat burner supplements help with appetite control and boost metabolism. They can lead to small weight-loss effects when used with a healthy diet and exercise. Remember, they are not magic solutions and should be used with caution.

How do fat burners work — what are the main mechanisms of action?

Fat burners work in several ways. They increase heat production, help burn fat, and control hunger. They also affect metabolism and gut health. Each method offers small benefits when combined with diet and exercise.

Which ingredients have the strongest clinical support for fat loss?

Ingredients backed by science include caffeine, green tea extract, and soluble fibers. Protein supplements, berberine, and certain extracts also show promise. Look for products with clear dosing and third-party testing for safety and effectiveness.

Is caffeine effective and how much is safe per day?

Caffeine boosts energy and can aid in weight loss. It’s best to limit daily intake to 400 mg to avoid side effects. Be mindful of caffeine amounts in your supplements and overall diet.

What does green tea extract (EGCG) do and are there risks?

EGCG may help with weight loss, but it’s not a guarantee. Rare cases of liver injury have been reported. If you have liver issues or take medications, consult a doctor before using green tea extract.

How do protein supplements help with fat loss?

Protein helps you feel full and keeps muscle mass during dieting. It’s best to use protein supplements with resistance training. Choose low-sugar options to avoid extra calories.

Do soluble fibers like glucomannan and psyllium actually reduce belly fat?

Soluble fibers can help you feel full and may lead to weight loss. They work best when combined with exercise. Start with a small dose and drink plenty of water to avoid stomach issues.

What common side effects should you watch for with fat burners?

Look out for jitters, insomnia, and stomach problems. Rarely, they can cause liver damage. If you experience severe symptoms, stop using the product and seek medical help

Can fat burners interact with medications or medical conditions?

Yes, they can interact with medications and worsen health conditions. Be cautious if you have heart or psychiatric issues. Always talk to your doctor before starting any new supplements.

How do I evaluate product quality and safety when buying fat burners?

Look for clear labels, third-party certifications, and ISO testing. Choose brands that disclose ingredient amounts and have scientific backing. This reduces the risk of harmful ingredients.

How should you choose a fat burner based on your goals and sensitivity?

Pick a product that matches your needs. For energy, choose thermogenic formulas. For appetite control, opt for fiber or protein-based products. Consider your caffeine sensitivity and choose accordingly.

Are there gender‑specific recommendations for fat burners?

Men may prefer higher-stimulant products, while women might benefit from lower-stimulant options. Consider your body’s response and health conditions when selecting a fat burner.

What practical tips should you follow when buying and starting a fat burner?

Check for third-party testing and clear ingredient labels. Start with a low dose to test your tolerance. Compare prices and serving sizes to find the best value.

Which supplements did experts test and what was their evaluation approach?

Experts tested various supplements for safety, ingredient quality, and effectiveness. They looked for realistic results and considered clinical evidence. Their approach included testing different types of products.

Which products stood out in expert testing and why?

PhenQ was praised for its overall performance. Kaged Clean Burn impressed with its taste and quality. Legion Phoenix offered a stim-free option. Jacked Factory Burn XT was noted for its clear dosing. Transparent Labs Recomp Stim-Free and 1st Phorm L-Carnitine were also highlighted for their quality and effectiveness.

What ranking criteria did experts use to pick the best fat burners?

Experts evaluated products based on ingredient quality, safety, and effectiveness. They considered label transparency, third-party testing, and manufacturing standards. Practical aspects like taste and mixability were also important.

Can you get a quick pros/cons snapshot for the top tested products?

PhenQ offers low caffeine and is easy to use. Kaged Clean Burn has great taste and is Informed Sport certified. Legion Phoenix is a good choice for women. Jacked Factory Burn XT has clear dosing but high caffeine. Transparent Labs Recomp Stim-Free is transparent and safe. 1st Phorm L-Carnitine is a good option for workouts.

How should you stack fat burners with diet and exercise for best results?

Use thermogenic formulas before workouts for energy. Pair appetite-focused supplements with meals to control calorie intake. Always maintain a calorie deficit and use supplements as aids, not the main solution.

What are best practices for dosage timing and tolerance testing?

Start with a low dose to test your tolerance. Take stimulant formulas in the morning and avoid before bedtime. Space out high-fiber supplements from medications. Follow the label instructions and consult a healthcare provider for personalized advice.

How should you monitor progress and handle side effects?

Track your weight, body composition, and workout performance. Be aware of hunger, sleep quality, heart rate, and stomach issues. If you experience severe side effects, stop the supplement and seek medical help. Stick to tested products to avoid harmful ingredients.

Are there common myths about fat burners I should be aware of?

Yes, there are myths. Fat burners are not magic solutions and require diet and exercise. Natural ingredients can still cause side effects and interact with medications. Be cautious with high caffeine amounts and consult a healthcare professional for guidance.

What are the top takeaways when considering the best fat burner supplements?

Use supplements as tools, not substitutes for a healthy lifestyle. Choose products with scientific backing and clear labels. Monitor caffeine intake and side effects. Always consult a healthcare professional, especially if you have health conditions or take medications. Combine supplements with a balanced diet, exercise, and proper sleep for the best results.

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