"Plenty of diets cut calories seriously low, at least at first, and they get results. But not forever," explains Susan Hewlings, Ph.D., RD, in Bodybuilding.com's Foundations of Fitness Nutrition course. "Past a certain point, restricting calories doesn't predictably lead to weight loss—and if it does, it's in ways that aren't healthy, and it definitely won't feel pleasant or sustainable for you."

These supplements also make it harder for your body to absorb more fat from the foods you eat. In addition, they can also make it easier for you to stick to your diet and keep your caloric intake low to prevent additional weight gain. All in all, they are designed to help you lose weight and decrease the amount of body fat you have by increasing your metabolism.
Third on our best fat burners list is Hourglass, a 90 capsule fat burner which has an impressive selection of ingredients and attractive looking packaging. You might be put off by some of the more female orientated aspects of the product, including the marketing and the look of the brand, but don’t be. There’s no such thing as a gender specific fat burner. Men and women’s bodies are almost identical so there’s no reason why this product won’t work for any man. The best way to prove this is to look at the ingredients. As you’ll see, they’re common in many male targeted fat burners.
Spicy Foods like Cayenne Pepper: Spices that warm the body seem to be good for more than just keeping you feeling toasty — they may also increase your body’s ability to burn fat, suppress hunger levels, normalize glucose levels and reduce your appetite for sweets. Studies have shown that herbs like cayenne pepper, turmeric, cinnamon and dandelion may all help reduce weight gain without having negative effects. (10) Because spices have positive effects on metabolism, I recommend adding some daily to things like homemade detox drinks, marinades for proteins, stir-fry, veggies or soups.
While many people turn to artificial sweeteners in a misguided attempt to whittle their waistlines, those fake sugars are likely to have the opposite effect. According to Yale researchers, artificial sweeteners are actually linked with an increased risk of abdominal obesity and weight gain, possibly because they can trigger cravings for the real stuff and spike insulin levels in a similar fashion to real sugar.
CLA: Conjugated linoleic acid, or CLA, is a naturally occurring fatty acid, similar to an omega-6 fatty acid. Even though CLA is a fat, studies show that consuming 1.4-3.0 grams per day can lead to overall body-fat loss.[3,4] It can also help you retain muscle during periods of weight loss, as kinesiologist Ciaran Fairman, Ph.D., explains in the article "Your Expert Guide to CLA." Remember, muscle is your ally for long-term success!
Aging men – As our bodies age, our metabolism slows down and our testosterone levels start dropping. It’s unfortunate, but it’s just the way it works! If you’ve noticed that you’re putting on weight and you haven’t changed your diet or exercise habits, it may be that your metabolism is slowing down. If so, adding a fat burner or testosterone booster can potentially help you get back on track and stay in shape!
Sunny side up, scrambled, hard-boiled, or fried—it doesn't matter. A pan, spatula, and carton of eggs are all you need to fry some serious flab. Eggs are one of the best sources of choline, a major fat-burning nutrient that helps turn off the genes responsible for belly-fat storage. Bonus: eggs are a great source of lean protein, which can set the fat-burning pace for your entire day when eaten for breakfast. In a study of 21 men published in the journal Nutrition Research, half were fed a breakfast of bagels while half ate eggs. The egg group were observed to have a lower response to ghrelin, were less hungry three hours later and consumed fewer calories for the next 24 hours!
Supplements are able to control your fat absorption in two main ways. First, ingredients like orlistat work by disabling the enzyme that is responsible for digesting and breaking down fat. If this enzyme doesn’t work, much less fat is absorbed into the bloodstream. Second, substances like chitosan work by attracting the fat molecules from the food you eat. They hold onto the fat throughout the digestive process until they are excreted from the body.
If you've got weight to lose and you want it gone fast, try swapping out your usual proteins in favor of fish. Not only is fish lower in calories than an equivalent amount of beef or chicken, a study published in Obesity reveals study subjects who added omega-3 fatty acids, like those found in fish, to their diets shed more weight and had an easier time keeping it off than those who skipped them.
Most weight loss supplements are not tested in clinical trials or included in evaluation studies conducted under well-controlled conditions with average human volunteers. Weight loss pill manufacturers are not required to test new ingredients or even to list things like potential side effects on the product’s label. Therefore it can be hard to tell what type of ingredients you’re even ingesting when consuming weight loss supplements or how you’ll react to different dosages.

Aging men – As our bodies age, our metabolism slows down and our testosterone levels start dropping. It’s unfortunate, but it’s just the way it works! If you’ve noticed that you’re putting on weight and you haven’t changed your diet or exercise habits, it may be that your metabolism is slowing down. If so, adding a fat burner or testosterone booster can potentially help you get back on track and stay in shape!

A little garlic in your meals could mean a lot less weight around your middle. The results of a Korean study found that mice given a high-fat diet supplemented with garlic lost significantly more weight and abdominal fat than those who just ate fatty foods. Even better, they also improved their liver health, making it easier to stay healthy and burn off that excess fat in the long term. For more flavorful ways to make your food more enjoyable, turn to the metabolism-boosting spicy recipes and watch those pounds melt away.


Super HD is a great product containing some of the best weight loss ingredients that work well by targeting the various aspects that are important to burning off fat. With only 2 capsules needed per day (compared to 4-6+ with other products), Super HD is also very convenient. Lastly, the backing of a respectable company like Cellucor makes this product one of our top recommendations.
Performance Lab Sport contains several quality ingredients including coleus forskohlii, cayenne pepper extract, black pepper extract and the ‘featured nutrient’ beta-hydroxy beta-methylbutyrate (HMB). HMB is purported to neutralize enzymes that cause muscle damage when in the gym, boost hypertrophy and improve strength gains. All combined, these ingredients could help you acheive your training goals. Though you need to make sure you’re exercising regularly or eating well, as no supplement is a remedy for a bad diet and inactivity.

Caffeine tolerance is lower – In the past fat burners with high stimulants made women feel worse not better. Now, the best female fat burners use natural alternatives to help you burn more calories. This means you can give your metabolic rate the boost it needs, improving your energy levels in the gym and avoiding problematic palpitations or nausea which can halt your progress.
Caffeine is often included in fat-burning supplements the form of yerba mate or guarana — however, manufacturers may include these substances in amounts they’re rarely used otherwise. Caffeine is a common weight loss ingredient because it often has the effect of dulling someone’s appetite and help increase energy for activity. However, too much caffeine can cause side effects like jitteriness, headaches, insomnia, anxiety, heart palpitations, diarrhea and more.
Another risk regarding the use of dietary supplements intended to promote weight loss is that these products are usually self-prescribed without clearance or input from a health care professional. This can result in harmful interactions between different products and/or medications. Currently in the U.S., there is no controlled system for reporting bad reactions and side effects associated with popular weight loss pills. While some people taking these products, or their doctors, may sometimes report problems to the FDA, they’re not required by law to do so.

Those trans fats on your menu are hiding out in plain sight and sabotaging your lean belly plans every time you eat them. If a food product says it contains partially hydrogenated oils, you're eating trans fat, which can increase your risk of heart disease, high cholesterol, and obesity with every bite. In fact, research conducted at Wake Forest University reveals that monkeys whose diets contained eight percent trans fat upped their body fat by 7.2 percent over a six-year study, while those who ate monounsaturated fat gained just a fraction of that amount. Instead of letting harmful trans fat take up space on your menu, fill up with these healthy fats.
According to the School of Sport and Exercise Sciences at University of Birmingham, “The term ‘fat burner’ is used to describe nutrition supplements that are claimed to acutely increase fat metabolism or energy expenditure, impair fat absorption, increase weight loss, increase fat oxidation during exercise, or somehow cause long-term adaptations that promote fat metabolism.” (3)
Green Tea: Green tea and green tea extracts have been shown to activate the body's thermogenic fat-burning activity. A study published in the American Journal of Clinical Nutrition found that men who ingested the active ingredient in green tea (catechins) significantly reduced their total fat area, waist circumference, skinfold thickness, and subcutaneous fat area.[2] As exercise physiologist Nick Coker explains in the article "Your Expert Guide to Green Tea," taking this ingredient with caffeine has been shown to make it even more effective.
Ansari says alcohol can prevent weight loss in several ways, including the fact that heavy alcohol intake can stimulate food intake. "Binge drinking can overload the liver. The liver then prioritizes processing alcohol over other nutrients and then stores the protein, carbs, and fat as fat in the body," Ansari explains. The Centers for Disease Control and Prevention (CDC) defines binge drinking as having five or more drinks for men, and four or more drinks for women in two hours. "Also, alcoholic beverages are often mixed with sugar-rich beverages. Drinking more than moderate amounts of alcohol can cause calories to add up quickly," she says.
To avoid feeling hungry after a workout, eat a snack with at least 12 grams of protein before exercising, says Dr. Cheskin. And if you’re still hungry afterward? First, check in with yourself and make sure it’s actual hunger and not dehydration, says Dr. Cheskin. Then, eat a protein-rich snack that also includes some carbs, like a protein bar with whole grains.
Don't pass up on this cheap trick. "One of the most under-appreciated magic fat-burning elixirs is water," says Ajia Cherry, ACE, CHC, CPT, personal trainer and Founder at Functional Innovative Training. "The more water you drink, the fuller you will feel, the easier it is to cut back on unnecessary calories. That's an essential element of weight and fat loss," she explains. Water is necessary to keep your metabolism functioning optimally. For even more of a kick, add a lemon to your glass. D-limonene, an antioxidant in lemon peel, has been shown to have a therapeutic effect on metabolic disorders in mice with high-fat-diet-induced obesity.
There are several ways that grapefruit essential oil may act like a natural weight loss booster. Grapefruit’s active ingredients may be able to boost metabolism, reduce your appetite, lower cravings and give you a mild dose of uplifting energy. Enzymes found in the fruit help your body break down sugar according to certain study findings, and as an added benefit many people find the scent of citrus fruits reduces cravings for sweets. (8)
Start at a low dose: Fat burners are designed specifically to give you the proper doses of various ingredients to support fat loss. But that doesn't mean that the more of the ingredients you take, the more results you'll see. Supplement manufacturers state the serving guidelines and directions so you can have a way of measuring what dose works best for you.
Most fat burners will suggest taking at least two doses spread out throughout the day. The timing of these doses is also important. It is usually advised to take doses right before breakfast and lunch. This will allow them to kick in to help you feel full after meals and will give you energy throughout the day. But be sure not to take them late in the afternoon or at night, otherwise they might end up keeping you awake. Getting a good night’s sleep is also an important part of losing weight. Remember that one.
Hunter Burn contains the key ingredients you’ll find in other products, but at much higher doses. For example, it contains matcha green tea, a variant of the green tea extract you find in other products. The difference is this type of green tea is three times stronger – and (in theory) it could help burn calories even faster. Hunter Burn also contains konjac root, which is said to reduce hunger. To finish off, a good dose of vitamin D3 is thought to help you lose weight, but gain muscle. The larger servings make up for the high price, giving you a range of meticulously-researched ingredients in optimal amounts.
Do you even lift, bro? If you're serious about getting rid of that belly fat fast, resistance training might just be the key. A study from the Harvard School of Public Health found that adding weight training to adult male test subjects' workouts significantly reduced their risk of abdominal obesity over a multi-year study period, although doing the same amount of cardio had no such effect. Research from the University of Maryland even found that just 16 weeks of weight training boosted study participants' metabolic rates by a whopping 7.7 percent, making it easier to ditch those extra inches around your middle.
Probiotics are “good bacteria” found in fermented foods or drinks, and also supplements. These bacteria reside in your gastrointestinal tract (also called the microbiome) and have many functions throughout your body. Research suggests that probiotics have numerous benefits for immune, digestive, hormonal and central nervous system functions. Studies have indicated that there are differences in the microbial composition between obese and non-obese patients, and probiotics are involved in energy homeostasis, regulation of appetite, dietary intake and storage of lipids (fats).
A good supplement will have riboflavin and possibly dicalcium phosphate and/or vegetable cellulose. Supplements usually contain 2% or less silica and vegetable magnesium stearate. Ensure that the dosage instructions are in keeping with the daily dosage recommendation. Remember, you don’t need a whole ton. Anything your body doesn’t need, you’re just going to lose down the toilet!

This classic lunchbox sandwich condiment is teeming with flat-belly nutrients such as cholesterol-lowering monounsaturated fats and is a great source of plant-based protein. According to a recent study presented at the annual Society for Endocrinology conference, researchers found that when protein is digested and broken down into amino acids in your body, one of those amino acids—phenylalanine—triggers hormones that help reduce appetite and ultimately leads to fat burn and weight loss. Go for brands that have an ingredient list of just two items: nuts and a little salt, or look to our guide: Best and Worst Peanut Butters.
A 2015 study from the Annals of Internal Medicine showed that for those who have a hard time following a strict diet, simplifying the weight loss approach by just increasing fiber intake can still lead to weight loss. Women should aim for at least 25 grams of fiber per day (based on a 2,000-calorie) diet, according to the most recent U.S. Dietary Guidelines. Start with our high-fiber diet plan.

Caffeine is often included in fat-burning supplements the form of yerba mate or guarana — however, manufacturers may include these substances in amounts they’re rarely used otherwise. Caffeine is a common weight loss ingredient because it often has the effect of dulling someone’s appetite and help increase energy for activity. However, too much caffeine can cause side effects like jitteriness, headaches, insomnia, anxiety, heart palpitations, diarrhea and more.
Filled with quality ingredients like green tea, garcinia cambogia, and vitamin B12, KOR's premium, high-quality thermogenic pills aid in fat loss and appetite control, plus provide you with increased energy that lasts all day (without jitters, crashes, or hidden/banned substances). Preserve your muscle and burn away fat thanks to these powerful and unique ingredients designed specifically for men.
Red is one of the best colors for weight loss. That's because the color is due to higher levels of nutrients called flavonoids—particularly anthocyanins—which calm the action of fat-storage genes, according to Oxidative Medicine and Cellular Longevity research. In fact, red-bellied stone fruits like plums boast phenolic compounds that have been shown to "turn off" fat genes. Plus, their pectin—a gelatin-like type of fiber found in the cell walls of fruits—limits the amount of fat your cells can absorb, as shown by a Nutrition & Metabolism study.
Known as "forbidden rice" because only emperors were allowed to eat it, black rice may be the cheapest source of antioxidants around. According to the American Chemical Society, black rice has more antioxidants than a spoonful of blueberries, with more satiating fiber, more vitamin E, and less sugar. More antioxidants mean less inflammation, which means less fat storage for you.
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