Who does not want to burn fat and achieve their leanest body yet? Fat burners is a generic term to nutritional supplements that are often described to have benefits of increase fat metabolism, reduce fat absorption, support weight loss, or promote overall nutrition that leads to long term fat loss. What many people do not realize is that the best fat burners have multiple different ingredients. In addition the best fat burners consist their own unique properties. The most popular fat loss supplements contain the following ingredients caffeine, l-carnitine, green tea extract, conjugated linoleic acid (CLA), and ephedra.
The purpose of this article is not to tell you which fat burner to take or make any outlandish claims. Therefore the goal is to offer real science. Let the research on some of the best fat loss supplement ingredients support you in finding the right product. Above all there is a fat burner that fits your needs. The research listed below will focus on research conducted on people.

Best Caffeine
Caffeine may be the most popular fat burner ingredient on the market today. There are very few weight loss products that do not have caffeine in them. One of the most popular studies that consisted of two women and 7 men looked at fat metabolism after consuming caffeine. The subjects consumed 330mg of caffeine before exercise. The caffeine group burned a significant high rate of fat which was 1.31 g/m over the .75 g/m of the non-caffeinated group. (1)
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L-Carnitine Fat Burner
L-carnitine is an amino acid with meat being one of the main sources. For decades now there have been many different claims as to carnitine’s ability to increase fat metabolism and reduce total fat loss. L-carnitine used to be a hot fat loss supplement though the demand has decreased. A recent study has injected new life into L-carnitine supplementation. The study established increasing the total amount of carnitine in muscle tissue can reduce muscle glycolysis, increase glycogen storage in muscle cells, and increase fat oxidation. (2)
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Green Tea Extract
Green tea comes from non-fermented leaves which makes it high in catechin polyphenols. This one of the main differences between green tea and black tea. A study published in the American Journal of Clinical Nutrition found green tea to have fat burning properties and increased fat oxidation. The finding showed results greater than just the caffeine content in green tea. The researchers theorized that green tea impacts body composition by activating thermogenesis and fat oxidation. (3)
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Conjugated Linoleic Acids (CLA)
Conjugated linoleic acids otherwise know as CLA are isomers of omega-6 fatty acids that has many associated benefits researchers have been investigating as it relates to fighting obesity and fat loss. In a long-term study of a year investigating supplementation with CLA the researchers concluded that CLA did reduce total body fat mass for both men and women over the placebo group. (4)
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Best Ephedra
Ephedra has long been used for its metabolic boosting and energy properties. In a 6-month study that looked into the weight loss benefits of ephedra, the researchers concluded that an herbal combination of ephedra and caffeine increased fat loss, improved blood lipid levels, and increased weight loss. The researchers discovered these results with no significant adverse effects of taking ephedra daily. (5)
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No fat loss ingredients are going to be a magic pill for fat burning. With the right ingredients, fat loss goals can have a greater chance at success combined with a good exercise and diet plan. Each ingredient has different mechanisms in the body that can work alone or in conjunction with exercise.