Many people will turn to dietary supplements on their weight loss journey, as they are a quick and easy way to help you supercharge your results. There are also a great range of different options to choose from, like a natural appetite suppressant, a thermogenic fat burner, or an energy or metabolism boosting supplement.
That last one is often a particularly appealing option for any people who are looking to improve their body composition, as a metabolism booster completely alters the way in which your body processes the foods you consume. This means it can help you burn fat and build or preserve lean muscle mass at the same time.
The only issue is that, with so many different types of metabolism boosters on the market, it can be hard to work out which one is right for you. That is why we have made this list of the very best metabolism booster supplements, to help everyone find the right pills to achieve the healthy body weight that they desire.
Before we dive into the effectiveness of metabolism boosters, let's first understand what metabolism actually is. Metabolism refers to the chemical processes that occur within our bodies to convert food into energy. It involves the breakdown of carbohydrates, proteins, and fats, which are then used by our cells to function effectively.
There are different components of metabolism that contribute to the overall energy expenditure of our bodies. One such component is the basal metabolic rate (BMR), which accounts for approximately 70 percent of our daily energy use. BMR represents the amount of energy our bodies require to maintain basic functions while at rest.
Apart from BMR, physical activity and the process of digesting food also contribute to the calories we burn each day. Exercise and movement increase energy expenditure, while the digestion of food leads to diet-induced thermogenesis, which also burns calories.
When we diet however, we tend to subconciously move less, which is actually a large part of our "metabolism dropping" this makes stimulants like caffeine particularly useful for metabolism boosting as it naturally combats this compounding issue.
Now that we have a basic understanding of metabolism, let's explore some common ingredients found in products that claim to boost metabolism. It's important to note that most of these ingredients are typically tested individually, so we'll assess their effectiveness based on existing research.
Caffeine, a widely consumed stimulant, has been shown to increase thermogenesis and potentially boost metabolism. Studies have found that a minimum daily dose of 270 milligrams (mg) of caffeine can lead to increased calorie burning, as reported in a review article published in Obesity Reviews. However, it's worth noting that regular caffeine consumption may reduce this effect. Before adding more caffeine to your diet, it's advisable to consult with your doctor and ensure that your caffeine sources are not high in calories, as excessive consumption of sugary coffee drinks can lead to weight gain.
Capsaicin, the compound responsible for the heat in jalapeños, may have a positive impact on weight loss. Research suggests that capsaicin can increase calorie expenditure by approximately 50 calories per day, as reported in a review of 20 studies published in Appetite. While this may seem like a small number, it can contribute to long-term weight loss when combined with a healthy diet and regular exercise.
L-carnitine is a substance that helps the body convert fat into energy. While it is naturally produced in the liver and kidneys, it can also be found in meat, dairy products, nuts, and legumes. L-carnitine has been found to have potential benefits for conditions like heart disease, peripheral artery disease, and diabetic neuropathy. However, its effectiveness as a dietary supplement for weight loss is still questionable. A study published in the Journal of Medicinal Food found some anti-obesity benefits of L-carnitine, but additional research is needed to fully understand its impact on weight loss. It's important to note that excessive consumption of L-carnitine supplements can lead to potentially dangerous side effects, so caution is advised.
Conjugated linoleic acid (CLA) is a supplement that has been investigated for its potential role in weight and fat loss. However, research findings on CLA's effectiveness have been mixed. A review of studies published in the European Journal of Nutrition found small and uncertain effects of CLA on weight and fat loss. Additionally, gastrointestinal problems and fatigue are common side effects associated with CLA supplements. It's important to consider these factors before incorporating CLA into your weight loss regimen.
Green tea has long been touted for its potential weight loss benefits. While numerous studies have been conducted, the results have not shown significant effects on weight loss. However, a study published in Physiology & Behavior suggests that catechins and caffeine found in green tea may contribute to weight maintenance. Green tea is generally considered safe and can be a healthy addition to most people's diets.
Caffeine is a potent and popular stimulant that will boost metabolism, give you more energy, and promote thermogenesis to raise your internal body temperature all at once. This will directly burn more calories and stubborn belly fat, while giving you the energy to train hard and lose weight even faster (1).
Green tea extract also contains a small amount of natural caffeine and is a mild appetite suppressant, but it is primarily included as it contains an antioxidant catechin called EGCG. This allows it to boost metabolism, fat burning, and energy levels, while preventing inflammation, overeating, injuries, and bloating (2).
Cayenne pepper extract contains a chemical called capsaicin, while black pepper extract has the alkaloid piperine, both of which are thermogenic fat burner ingredients which promote body fat burning directly.
However, both are widely used in dietary supplements as they are bioavailability enhancers. This means that they make it easier for your body to absorb the other ingredients they contain and make them more effective (3)(4).
L-theanine is an amino acid that is often taken in combination with stimulants, as it can prevent the crashes and sleep issues they sometimes cause. It will then also reduce fatigue and improve recovery, which will help to keep you healthy and working out, to ensure that you can achieve maximum weight loss (5).
Glucomannan is a type of insoluble dietary fiber with very few calories. It swells dramatically when it comes into contact with water in your gut, allowing it to function as a powerful appetite suppressant, which fills you up, prevents food cravings, and helps you consume fewer calories and stick to a healthy diet (6).
It also slows the rate that food is released from the gut, ensuring it is properly broken down and boosting metabolism even further.
Lastly, the three vitamins (b6,b12 d3) and will burn fat cells, suppress appetite, and improve the efficacy of all the other ingredients, while offering additional health benefits, like reducing the risk of heart disease, high blood pressure, and cholesterol, and blood sugar spikes (7)(8)(9). D3 has also been shown to improve athletic performance and energy levels as a stand alone, making it perfect for a metabolism booster. After all if you move more because you have more energy then you'll burn more calories.
Pros
Its formula is gluten free, vegan friendly, and FDA approved
Can promote weight loss from every angle
Features only optimally dosed, proven natural ingredients not banned by any major sporting bodies
Steps have been taken to prevent any of the side effects that metabolism boosters can cause
Boasts a reasonable price tag and money back guarantee
Well reviewed by users of all ability levels
Cons
Available for purchase exclusively on the official Instant Knockout Cut website
They then also suppress appetite to help you stick to a healthy diet, reduce inflammation and pain to make sure you never miss a workouts, and improve the bioavailability of the other ingredients in the metabolism booster pills, to make them easier to absorb and more effective.
The mineral zinc will stimulate the pituitary gland and cause it to boost your metabolism, testosterone, and luteinizing hormone production, DNA synthesis, energy levels, immune functions, recovery time, and vision, and reduce inflammation and slow the signs of aging (10).
The b vitamins will boost metabolism and nutrient absorption, while offering health benefits like improved immune and nervous systems, antibody, bone marrow, DNA, nerve sheath, and red blood cell production and function, cell respiration, tissue repair, and overall health and fitness (11).
The last three ingredients are all appetite suppressants that function in very different ways to one another.
The soluble dietary fiber glucomannan expands to take up space, remove food cravings, and stop you from eating more calories than you need, while slowing the release of food from the gut, to boost your metabolism and avoid any undigested food from being turned into fat mass.
5-htp is an amino acid that can cross the blood brain barrier easier than most other chemicals. This allows it to boost serotonin production, mood, sleep quality, focus, relaxation, and fat burning, relieve anxiety, depression, and stress, and suppress your appetite to keep your calorie intake down (12).
Chromium is a chemical element that also improves your serotonin production and focus, but it boosts metabolism, lowers your blood sugar levels, and improves the efficacy of the other ingredients in the metabolism pills too (13).
Pros
Combines the effects of appetite suppressing, fat burning, and energy and metabolism boosting supplements
All the ingredients are high quality, optimally dosed, and clinically proven to promote weight loss
Designed to take all of the needs of the female body into account
Comes with a money back guarantee in case you change your mind
Cons
A little on the pricey side
Only available directly from the official Hourglass Fit website
Cayenne pepper and green tea extract then also have thermogenic properties which will burn body fat directly too, while vitamin d boosts your energy levels, workout performance, and overall health, all of which are especially beneficial when losing weight.
Glucomannan will also increase metabolism naturally by slowing the release of foods from the gut. It then swells to make you feel full and help you eat fewer calories, all of which will prevent the creation of stored fat.
White kidney bean extract works by inhibiting the digestion of dietary starches and preventing your body from absorbing all of the carbohydrates in the food that you eat. This will instead cause them to sit in your gut without being broken down, until they are excreted in your waste or fermented by bacteria in the colon.
This will prevent food cravings, blood sugar spikes, and you from eating more calories than you need and gaining more body fat all at the same time (14).
Finally, the amino acid l-theanine will help you focus, sleep, and relax, boosting your energy levels and immunity, while reducing anxiety and stress, to ensure you continue to enjoy healthy weight loss.
Pros
All of its ingredients are optimally dosed to ensure maximum efficacy without causing any side effects
Ideal for people who have a slow metabolism or consistently eat more calories than their body can deal with
Does not feature anything but high quality, clinically proven ingredients
Customer reviews are virtually all extremely positive
Comes with a money back guarantee on all purchases
Cons
Can make you forget to eat for an unhealthy length of time
Only available directly from the official Hunter Burn and Hunter Evolve websites
The caffeine and green tea extract will aid fat burning and boost your energy levels and exercise performance, while reducing inflammation and keeping you fit and healthy.
The l-theanine will aid your recovery, prevent any of the side effects that stimulants can cause, improve your sleep quality, and even increase metabolism and weight loss directly. Meanwhile, the b vitamins, including vitamin b3, will keep your heart, brain, and body healthy and functioning just as they should (15).
Ashwagandha is a root extract that can boost brain and heart health, focus, memory, muscle growth, physical performance, sleep quality, and testosterone production, while reducing anxiety, stress, and blood sugar levels, all of which boost metabolism, aid weight loss and fat burning, and prevent weight gain (16).
Coleus forskolin is a plant extract believed to promote stored fat oxidation and testosterone production. This would simultaneously accelerate the growth of lean muscle mass and the burning of body fat cells, to significantly improve your overall body composition (17).
Green coffee bean extract contains caffeine, chlorogenic acid, and antioxidant catechins. It can help lower your blood pressure and blood sugar levels, boost your metabolism, recovery time, energy levels, and overall health, speed up the rate that the body burns calories and fat, and prevent weight gain (18).
Lastly, rhodiola rosea root extract is said to increase metabolism, focus, and brain functions, while reducing anxiety, depression, fatigue, stress, and tiredness, and combat certain illnesses, to make sure you stay healthy as you lose weight (19).
Pros
One of the best supplements to boost your metabolism naturally with herbal ingredients
Great for promoting rest and recovery
Cons
More expensive than many metabolism boosting supplements on the market
Some of the ingredients need to be studied more extensively to prove they benefit your metabolic rate or weight loss
Most of the ingredients are in a proprietary blend that masks their dosages and makes it hard to know if they will improve your metabolic rate
This means it and the green tea extract will still boost your metabolism and help you lose fat, while giving you more energy so you can train harder and reducing inflammation to prevent injuries. This will help you to burn even more calories, lose weight faster, and maintain all of your muscle mass while you are doing so.
The black and cayenne pepper extracts are then also thermogenic fat burner ingredients that will boost fat oxidation and burning, to aid weight loss directly, and reduce inflammation, while making all of the other ingredients in the metabolism pills easier to absorb and more effective and potent.
There is one ingredient in Jacked Factory Burn XT that we have not seen before though, which is acetyl l-carnitine hcl. A methylated ester made from amino acids, it has antiseptic and antibacterial properties that enable it to convert fatty acids into usable energy and lower blood sugar and blood pressure levels.
It is also believed to boost weight loss directly and suppress appetite, to make it easier to stick to a healthy diet and avoid weight gain, to maximise how much body fat you lose (20).
The combination of metabolism boosting supplements that it contains gives Jacked Factory Burn XT the ability to help you lose weight from every angle, while its very low price means that it's a weight loss pill that can be obtained and used by virtually everyone.
Pros
Includes ingredients to both suppress your appetite, boost your metabolism, and promote fat burning
Can improve your mood and oxidation of fatty acids, to give you more energy so you can train harder
One of the most affordable weight loss or metabolism supplements on the market
Cons
Many of the metabolism boosting ingredients it contains are present in low dosages
Not as potent as many of the best weight loss or metabolism supplements
Metabolism boosting supplements are a great way to help you achieve your goals, whether you are looking to burn fat and lose weight or build lean muscle mass. There are a number of great metabolism boosters out there to choose from too, although the best metabolism booster pills by far are Instant Knockout Cut.
With a formula full of high quality, optimally dosed, clinically proven ingredients that is designed to help the body burn fat without losing muscle mass, it is a perfect choice for people seeking total control over their weight management. It even comes with a money back guarantee in case you change your mind as well.
If for any reason it does not sound like the metabolism boosting supplement for you, one of the other picks on our list of the best metabolism boosters surely will be. For everyone else though, we highly suggest that you give Instant Knockout Cut a try and see just how well it can aid your weight management for yourself.
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