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Best Weight Loss Supplements

Losing weight means eating less and exercising more, and that’s very few people’s idea of fun. Living without your favorite foods, not to mention finding the energy to go to the gym, can soon get old.

It’s no wonder that so many dieters look so miserable!

The good news is that by combining your diet and exercise program with one of the best weight loss supplements in this article, you’ll burn fat and lose weight quicker and easier than ever before.

While none of these products are magic bullets for weight loss, they are designed to suppress your appetite, speed up your metabolism, or just give you more energy for exercise.

Some are designed for men, while others are aimed at women, and many are for both.

If you find dieting hard, or just want to get better results from your diet, these are some of the most popular weight loss supplements around.

Top-Rated Weight Loss Supplements


LeanBean is a low-stim weight loss pill for women. Unlike many fat burners for women, it’s not loaded with caffeine. Instead, it contains gentler ingredients designed to help you lose weight quickly and easily.

Key Features

  • Konjac fiber for less hunger
  • Choline for better fat metabolism
  • Chromium for lower blood glucose
  • Vitamins B6 and B12 for energy
  • Chloride for better digestion
  • Zinc for increased protein synthesis and proper carbohydrate metabolism
  • Green coffee bean extract for increased metabolism
  • Turmeric for increased thermogenesis
  • Garcinia cambogia for less hunger and fewer cravings
  • Acai berry for its antioxidant, health-boosting properties
  • Piperine to increase the bioavailability of the other ingredients

Despite containing green coffee bean extract, LeanBean is very low in caffeine. While caffeine is an effective fat burner, it also comes with a wide range of unwanted side effects, not least anxiety, and insomnia. This is an excellent fat burner for women who prefer to consume less caffeine.


  • Low-stim formulation
  • Very few unwanted side effects
  • Formulated specifically for women
  • Easy to use
  • Vegetarian and vegan-friendly


  • Not as energizing as some higher caffeine metabolism booster pills

This is one of the best weight loss supplements for women. With very little caffeine, it won’t leave you feeling anxious or unable to sleep. Instead, you’ll just lose weight quicker and more easily, suffering less hunger and fewer cravings along the way.

Read our full Leanbean Review here.

2. Phen Gold


Phen Gold is a top-rated weight loss product that is suitable for men and women. It’s multidirectional formula attacks fat from all angles, making this a very useful fat burner that has an almost cult following amongst dieters.

Key Features

  • α-Lacys Reset for faster, easier fat burning and increased metabolism
  • Capsimax powder, which is a blend of fat burners capsicum, piperine, caffeine and niacin
  • Chromium picolinate to reduce hunger and control blood glucose for fewer cravings
  • Caffeine for energy and fat burning
  • Nopal for fiber and increased satiety
  • L-carnitine for energy and fat burning

Whether you need energy for work or exercise, want to burn more fat while you sleep, or need something to help you with your hunger and cravings, Phen Gold is designed to help. Made for men and women, this is a beneficial addition to any diet.


  • Proven formulation
  • Money-back guarantee
  • One-month supply per bottle
  • Multi-buy savings always available
  • Suitable for vegetarians and vegans


  • Only available online
  • Caffeine content means you should not use this product at night

The presence of caffeine means you can’t take this product at night. If you do, you may find you are unable to sleep. That’s a shame because the appetite suppressing effect of Phen Gold would be useful for preventing late-night eating. That said, this is still an excellent and safe fat burning supplement.

3. Powher Cut


Powher is a fat burning supplement specially formulated for women. Made from proven, natural ingredients, with this product, you should find you reach your weight loss goals faster and easier than ever before, and with very few unwanted side effects.

Key Features

  • Konjac foot for fiber and appetite control
  • Caffeine for energy and increased metabolism
  • Choline for fat burning and better digestion
  • Selenium and chromium for more stable blood glucose and fewer cravings
  • Iron for more energy, especially during exercise

While Powher Cut does contain caffeine, it’s a very modest amount per serving: 100mg. This is about the same amount as a cup of coffee. Combined with the other proven compounds, this product will help you lose weight without unpleasant side effects.


  • Tried and tested ingredients
  • Formulated specifically for women
  • 90-day money-back guarantee
  • Attacks fat on several fronts simultaneously
  • Huge multi-buy savings available


  • A large daily dose of 6 capsules
  • May still contain too much caffeine for some very sensitive users

One bottle of Powher contains a whopping 180 capsules. However, the manufacturers recommended that users take two capsules three times a day, so this still amounts to just a one-month supply. Providing you don’t mind popping pills with such regularity, Powher is an all-but perfect weight loss supplement for women.

4. Instant Knockout


Instant Knockout is a potent fat burner designed for men and women. Originally developed for boxers and MMA fighters, this product pulls no punches, and you’ll definitely feel it working!

Key Features

  • Green tea extract – a proven fat burner and thermogenic
  • Cayenne pepper seeds for increased thermogenesis
  • Glucomannan fiber for less hunger and fewer cravings
  • Caffeine anhydrous for energy and fat burning
  • Vitamins B6 and B12 for better carbohydrate metabolism and more energy
  • GTF chromium for more stable blood glucose and better carbohydrate metabolism
  • Zinc for muscle retention and hormone balance
  • Green coffee bean extract for fat burning and increased metabolism
  • Piperine for more thermogenesis and increased bioavailability of the other ingredients

Each dose of Instant Knockout contains 300mg of caffeine – that’s the same as three cups of coffee. Combined with the other proven ingredients in the product, this is one of the most powerful fat burners currently available.


  • Powerful, proven formulation
  • Easy to use
  • An effective fat burner and pre-workout energizer
  • Backed by a 90-day money-back guarantee
  • All-natural ingredients
  • Suitable for men and women


  • Maybe too high in caffeine for some users
  • Could cause insomnia and other unwanted side effects

According to the manufacturer, you should take one capsule of Instant Knockout four-times a day – including before your evening meal. While this will undoubtedly help you lose weight, it could also stop you from sleeping.

Providing you don’t mind losing sleep, this product will definitely help you burn fat faster. Alternatively, just skip your last dose of the day to enjoy all the benefits of this product without the side effect of insomnia.

5. Burn Lab Pro


Fat burners often contain large amounts of caffeine. While this common stimulant is useful for boosting energy and increasing fat loss, it can stop you from sleeping, and make you feel anxious and jittery.

Performance Labs Fat Burner is 100% caffeine and stimulant-free, making it a much gentler, more comfortable to use weight loss supplement.

Key Features

  • HMB for muscle retention, increased energy and exercise performance, increased muscle mass, and better fat burning
  • Coleus forskolin for increased thermogenesis and more efficient fat burning
  • Cayenne pepper extract for increased metabolism and better fat oxidation
  • GTF chromium for lower insulin resistance and better carbohydrate metabolism
  • Plant-based prebiotics for better digestive health
  • Black pepper extract for increased thermogenesis and increasing the bioavailability of the other ingredients

With no caffeine or other stimulants, Performance Labs Fat Burner won’t trigger any unwanted side effects. In fact, other than losing weight faster and easier, you probably won’t notice it working! That’s good news if too much caffeine gives you the jitters and stops you from sleeping properly.


  • No harsh stimulants
  • Designed for men and women
  • Proven ingredients
  • Vegan and vegetarian friendly


  • May not noticeably boost energy

This is one of the gentler fat burners around, but that doesn’t mean it’s ineffective. The ingredients are tested and proven and could help you lose weight faster. However, with no stimulants, some users may miss the buzz that caffeine usually provides.

6. Clenbutrol


According to the manufacturers, Clenbutrol is designed to replicate the powerful fat-burning effects of the steroid clenbuterol. While this product is an effective fat burner, it’s not THAT good! Marketing ploys aside, if you are looking for a potent fat burner, Clenbutrol could be the product for you.

Key Features

  • Vitamin B3 for energy and better carbohydrate metabolism
  • Garcinia cambogia for fewer cravings and less hunger
  • Hydroxy citric acid for increased metabolism and thermogenesis
  • Bitter orange extract for increased metabolism and fat burning
  • Guarana – a source of caffeine for increased energy and fat burning

Clenbutrol contains some very useful fat burning and appetite surpassing ingredients. However, it’s not so powerful that you’ll have to deal with lots of unwanted side effects. Instead, it’s a reliable product that will enhance the effectiveness of any weight loss diet.


  • Safe, proven ingredients
  • Easy to use
  • Modest caffeine content
  • All-natural ingredients
  • Free from potential allergens and artificial ingredients


  • Not suitable for vegetarians or vegans

Despite its steroid-like name, Clenbutrol is a very safe fat burner that contains proven ingredients and very reasonable amounts of caffeine – about the same as one cup of coffee. It’s not as hardcore as it’s trying to sound! Instead, this is a very well-designed fat burner that will gently help you lose weight more quickly.

7. BurnXT


Where some fat burners are designed to be mild and gentle, others are not. Some users really like to feel their weight loss supplement working. With 270mg of caffeine per serving, BurnXT is not subtle, but it will definitely work!

Key Features

  • Green tea leaf extract for increased thermogenesis and fat burning
  • Capximax cayenne pepper extract for increased metabolism
  • Teacrine for more mental energy and improved focus
  • Acetyl-l-carnitine for easier fat burning
  • Caffeine anhydrous for energy and increased metabolism
  • Theanine for more stable mood, less stress, and fewer cravings
  • Piperine for increased thermogenesis and to improve the potency of the other ingredients

Manufacturers Jacked Factory is known for making potent supplements. They usually go in hard and heavy on the active ingredients. While their products undoubtedly work, they may be too powerful for some users. BurnXT will help you burn fat faster, but it may be too intense for some users.


  • Powerful, proven formulation
  • Good for energy and fat burning
  • Ideal for exercisers
  • Suitable for vegetarians and vegans


  • High caffeine content could trigger unwanted side effects in some users

Providing you can tolerate the caffeine equivalent to three cups of coffee, BurnXT will help you lose fat while boosting your energy and suppressing your appetite. However, if you are the sort of person who feels jittery after just one cup of coffee, this is not the product for you!

8. LeanPM


A lot of fat burners seem to be designed to stop you from sleeping! They contain lots of caffeine, which is an excellent fat burner but also a powerful stimulant. LeanPM is different and, as well as containing proven fat burning ingredients, also contains sleep enhancers.

Key Features

  • Vitamin B6 for better carbohydrate metabolism
  • Magnesium for relaxation and better sleep
  • EGCG green tea leaf extract for increased thermogenesis
  • L-theanine less stress and fewer cravings
  • 5-HTP for deeper, longer sleep
  • Melatonin to help you fall asleep faster
  • Black pepper extract for increased metabolism and to improve the potency of the other ingredients

Sleep is a crucial part of losing weight. If you don’t get enough sleep, you are more likely to suffer daytime hunger and cravings and may not have the energy you need to work out. LeanPM is designed to help you sleep better and burn more fat throughout the night.


  • Stimulant-free formulation
  • Gentle but effective ingredients
  • Part sleep enhancer, part fat burner
  • Suitable for vegetarians and vegans


  • Could cause a melatonin dependency
  • Only suitable for nighttime use

LeanPM is an excellent alternative to high caffeine fat burners that can stop you from sleeping. In fact, it would work well alongside a higher-stim formulation. If you need a fat burner that won’t keep you awake all night, LeanPM is an excellent choice and vegan.

9. Cellucor Super HD


If there was a prize for the fat burner with the most caffeine in it, Cellucor Super HD would probably be the winner. With 400 mg of caffeine per serving, you’ll definitely feel this product working. Luckily, it’s more than just a caffeine bomb waiting to explode, and Super HD contains several additional fat burning ingredients.

Key Features

  • Caffeine blend for energy and thermogenesis
  • Cayenne pepper for increased metabolic rate
  • Black pepper extract for fat burning and increased potency of the other ingredients
  • Indian gooseberry extract for easier fat burning
  • Dyglofit for less hunger and fewer cravings
  • Zembrin for less stress and a better mood
  • Ariel parts extract for ridding excess water

Cellucor Super HD contains some interesting ingredients, all of which are overshadowed by 400mg of caffeine. While the caffeine is contained within a time-release formula, it is the most active ingredient in this product. However, if you have a good tolerance to the effects of caffeine, this product really should help you lose fat faster.


  • Powerful formulation
  • Low daily dose
  • Will boost mental and physical energy


  • May contain too much caffeine for some users
  • Not suitable for vegetarians or vegans

According to the manufacturers, Super HD should be taken no later than midday. Otherwise, the high caffeine content could prevent you from sleeping. That’s good advice that should be adhered too! If you are looking for a powerful fat burner with unmistakable side effects, this is the product for you.

10. Nobi Nutrition Premium Fat Burner


Nobi Nutrition Premium Fat Burner is designed specifically for women following the low-carb ketogenic diet. In fact, this product won’t work if you are eating carbs. There is nothing in this product that means men can’t use it, but it’s being marketed as a product for women.

Key Features

  • Calcium, magnesium, and sodium beta-hydroxybutyrate (BHB) for energy, faster fat burning, less hunger, fewer cravings, and shorter/less severe keto flu

BHB is a source of ketones. Increasing your ketone intake during a low carb diet can make the keto diet much more comfortable and effective. Despite their chemical-sounding names, BHB ketones are 100% natural, and your body uses them just like the ketones it produces itself.


  • Proven ingredients
  • Designed to be used alongside the ketogenic diet
  • Easy to use product


  • Not suitable for vegetarians or vegans
  • No benefit to non-keto dieters

While Nobi Nutrition Premium Fat Burner could help you lose weight faster on keto, it is not a fat burner in the conventional sense. It does not contain any of the ingredients that feature in other weight loss supplements. That said, if you are on keto, this product could help you lose weight faster.

11. Sheer Strength CLA 1500


Some weight loss supplements use a kitchen sink approach to their formulations, seemingly trying to see how many ingredients that can cram into their products. Sheer Strength CLA 1500 uses a different approach and contains only one active ingredient: conjugated linoleic acid or CLA for short.

Key Features

  • CLA for increased fat burning, less hunger, fewer cravings, and more energy

CLA is a fat that helps you burn fat – amazing! CLA has been studied and proven to produce weight loss, even in people who don’t change their diet or exercise habits. While CLA is not a magic cure for weight loss, and its effects are very mild, it’s still a useful fat burning ingredient.


  • High dose of CLA per serving
  • Free from stimulants
  • 100% natural ingredients
  • Proven to be effective
  • No known side effects


  • Not suitable for vegetarians or vegans
  • Does not have the energizing effect of stimulants like caffeine

CLA 1500 is a dietary supplement that could help you lose weight, even if you don’t change your diet or exercise routine. However, its effects are very mild. That said, if you combine this product with a sensible diet and sustainable workout program, you should notice that you lose weight faster, easier, and without any unwanted side effects.

12. The Ripper

The ripper

Most fat burners can also be used as pre-workout energizers because they contain caffeine. The Ripper (great name!) is a pre-workout energizer that is also a powerful fat burner. If you exercise for fat loss, this product could be the one you have been looking for.

Key Features

  • Vitamins A, B5, and B12 for more energy and better fat burning
  • Chromium for more stable blood glucose and fewer cravings
  • Caffeine anhydrous, raspberry ketones, beta-alanine, and guarana seed extract for energy during exercise
  • Taurine, acetyl-l-carnitine, green coffee bean extract, green tea leaf extract, cinnamon bark extract, and olive leaf extract for enhanced fat burning

If you are fed up of taking weight loss pills, and also want a product that is part pre-workout energizer, and part fat burner, this is the one for you. Just mix five grams with water and drink it down 15-30 minutes before exercise for the best fat burning workout of your life!


  • Two supplements in one
  • Proven formulation
  • Ideal for exercisers
  • Suitable for vegetarians and vegans


  • High caffeine content
  • Less useful for non-exercisers
  • Not suitable for nighttime use

As well as being a tremendous pre-workout fat burner, this product can also be used first thing in the morning to wake you up and give your metabolism a welcome boost. Fast-acting and very potent, this product will provide you with energy and may also suppress your appetite.

13. Naturelza


Have you had enough of hard to swallow capsules and messy drink mixes? Naturelza comes as a liquid and is delivered using a dropper. Because of this, Naturelza gets to work fast, and that’s good news if you find yourself in the throughs of a bout of hunger or cravings.

Key Features

  • L-arginine for energy, enhanced mood, and better blood flow
  • L-carnitine for energy, fat burning, and better mental function
  • Garcinia cambogia for less hunger, fewer cravings, and more stable blood glucose
  • African mango for faster fat burning and better digestive health
  • Cinnamon for lower, more stable blood glucose
  • Green tea for faster fat burning
  • Ginger for increased thermogenesis
  • Dandelion for less water retention
  • Green coffee bean extract for increased fat loss
  • Ginseng for energy and endurance
  • Gymnema Sylvestre for less hunger and fewer cravings
  • Chromium for more stable blood glucose
  • Coleus forskolin for preserving muscle mass and enhancing weight loss

This novel product is straightforward to use. Just place a few drops on your tongue and then swallow. Users report that it has a sweet, herby taste. Because there are no capsules to digest, the active ingredients can get to work almost immediately.


  • All-natural ingredients
  • Fast-acting formula
  • Suitable for vegetarians and vegans
  • Easy to use
  • No unwanted side effects
  • Free from stimulants


  • Won’t boost your energy as caffeinated weight loss supplements can
  • Hard to precisely control the size of each dose

With no stimulants, this product won’t stop you from sleeping, even if you use it late at night. However, with its potent fat burning and appetite suppressing effect, it will make sticking to almost any diet easier.

14. Physicians Choice Probiotic


One of the reasons that some people gain weight and then struggle to lose it again is poor digestive health. Physicians Choice Probiotic is not just a fat burner, it’s also designed to make you healthier, making it easier to lose weight and keep it off.

Key Features

  • Green tea complex for fat burning
  • Apple cider vinegar for appetite suppression and more stable blood glucose levels
  • Red pepper extract for increased metabolism and thermogenesis
  • Prebiotics to help maintain the health of the bacteria in your digestive system
  • Probiotics to repopulate the good bacteria in your digestive system
  • Digestive enzyme blend for better intestinal health

Weight loss is easier when you’ve got a healthy digestive system. This product is free from harsh stimulants and designed to heal your faulty digestive system from within. It’s arguably the healthiest weight loss supplement around.


  • Easy to use
  • All-natural ingredients
  • Stim-free formulation
  • Suitable for vegetarians and vegans
  • Good for your long-term health
  • One capsule per day dosage


  • Won’t boost your energy as some fat burners can

Physicians Choice Probiotic is the thinking person’s fat burner. It won’t rev you up or boost your energy. Instead, it will improve your health so that you naturally burn fat faster. Where most fat burners just treat the symptom of weight gain, Physicians Choice Probiotic goes straight to the cause.

15. Hydroxycut Hardcore Elite


Hydroxycut is one of the most well-known fat loss brands around. Hardcore Elite is their hardest-hitting formulation, and it’s not for beginners! If you have outgrown all the other fat burners, this product is sure to deliver the results you want. Be warned; this supplement is STRONG!

Key Features

  • Caffeine anhydrous for energy and fat burning
  • Robusta coffee bean extract for more caffeine
  • Coleus extract for increased thermogenesis and more efficient fat burning
  • L-theanine for a more stable mood
  • Theobromine for increased thermogenesis
  • Yohimbe for faster fat burning

There is a reason that Hydroxycut is one of the most popular men’s weight loss pills – they really work! Loaded with powerful ingredients, you’ll definitely feel this product in action. However, if you have a sensitivity to caffeine, this may not be the best product for you.


  • Very powerful formulation
  • Will boost energy and suppress appetite at the same time
  • Very respected brand
  • Low daily dose
  • Easy to use


  • May contain too much caffeine for some users
  • Some unwanted side effects likely, e.g., insomnia

If you need a fat burner you can really feel working, Hydroxycut Hardcore Elite will be a good choice. Its powerful formulation means it will produce the results you want in double-quick time. However, it may be too potent for some users and fat burner novices.

Key Information

Consider this vital information before buying and trying a weight loss supplement.

Do Diet Pills Even Work?

The good news is that, yes, there are weight loss pills that work. However, it’s important to understand that even the most effective weight loss pill will only have a very mild effect.

Diet pills work by increasing your metabolic rate, controlling your appetite, or performing some other related function. However, they won’t burn thousands of calories per day. They may only help you burn an extra hundred or so.

While that might sound insignificant, remember that, when it comes to losing weight, every calorie counts, and even a small boost can be helpful.

Top view of pretty slim woman with measure around her body standing on the scales.

Are weight loss supplements safe?

While weight loss supplements are largely unregulated, manufacturers are not allowed to use ingredients that are dangerous or very unhealthy. However, that doesn’t mean that weight loss pills are entirely free from risk.

Supplements contain a range of ingredients, and while they are mostly natural, that doesn’t mean that they won’t trigger unwanted side effects in sensitive individuals.

The most problematic ingredient is caffeine, and many fat burners contain large amounts of this popular stimulant. Despite being widely used, large amounts of caffeine can cause:

  • Anxiety
  • Palpations
  • Increased heart rate
  • High blood pressure
  • Dehydration
  • Insomnia
  • Tremors
  • Diarrhea

Because of this, weight loss supplements are not recommended for pre or post-natal women, children under the age of 18, or anyone with known sensitivities to the ingredients. If you are in any doubt, speak to your doctor before using even “safe” weight loss pills.

Natural weight loss options

There are several natural ways you can speed up weight loss and get better results from your diet. Those interventions include:

  • Drink a few large glasses of water before meals to feel fuller, sooner.
  • Eat more protein to increase your metabolism.
  • Only eat carbohydrates immediately after exercise.
  • Work out first thing in the morning on an empty stomach
  • Drink green tea
  • Eat more high fiber foods
  • Chew your food and eat more slowly
  • Only eat when sat at a dining table
  • Cut out all sugary snacks
  • Try skipping 1-2 meals a day

These proven methods, like metabolism booster pills, will speed up fat burning and weight loss, albeit only slightly.

How to get the most out of weight loss supplements

Get the most out of any weight loss supplement by always following the manufacturer’s instructions.

You may also increase their effect by taking your product first thing in the morning, and 15-30 minutes before meals.

Fitness man measuring his body. Cropped and mid-section image of young man measuring his waist with tape measure against grey background. Health and fitness concept.

However, if your chosen product contains caffeine, you should avoid using it too close to bedtime as it could prevent you from sleeping.

Don’t be tempted to take more than the recommended daily dose; this will not produce better results but could, instead, trigger unpleasant and even dangerous side effects.

Bottom Line

While there are no magic fat burning pills that allow you to lose weight without trying, there are medically proven weight loss supplements that may make the process just that little bit easier.

Losing weight and keeping it off involves a combination of eating less and exercising more. That’s how you create the caloric deficit that forces your body to burn stored body fat for fuel.

That said, using something like a thermogenic fat burner can help increase your resting metabolic rate, which means your diet and workouts will produce better, faster results.

The best way to think about diet pills is as effort multipliers. The harder you work, the harder they work in return. Combined with a sensible diet and sustainable exercise plan, these supplements give you a welcome weight-loss edge.

Whether you need to lose belly fat to lower your risk of coronary heart disease, or just want to burn fat to get a summer six-pack, these supplements can help. However, as effective as these products are, you’ll still need to watch what you eat and get up and move your body if you want to lose weight and keep it off.