Omega-3 Supplements for Fat Burning

Omega-3s shift your body into a fat-burning mode, promoting a leaner physique.

Q: What’s the deal with omega-3 supplements? Help or hype?

A: Definitely help!

Omega-3 fats are essential fats, meaning they cannot be manufactured in the body and that they are required to avoid disease. Omega-3s have numerous health benefits. They help to improve cell signaling, enhance skin, hair and nails and regulate important hormone-like compounds called eicosanoids. Perhaps their most important health-related function is their positive effect on the cardiovascular system. Not only do they inhibit the production of LDL (the “bad” form of cholesterol that has been implicated in the formation of atherosclerotic plaques), but they increase the output of HDL (the “good” cholesterol). This explains why replacing saturated fats with omega-3s on a calorie-for-calorie basis has been shown to reduce the risk of cardiovascular mortality by as much as 70 percent.

Omega-3s are also extremely important from a body composition standpoint. Because of their utility on cells, the body prefers to use omega-3s to fuel cellular functions and won’t store them as fat until these functions are satisfied. Specifically, they act as fuel partitioners, directing fatty acids away from storage and toward oxidation. One of the ways this is accomplished is through enzyme regulation, increasing the activity of fat-burning enzymes and suppressing the activity of fat-storing enzymes. The net effect is better fat metabolism and hence an improved body composition.

Additionally, omega-3s increase levels of a class of fat burning compounds called uncoupling proteins (UCPs). UCPs act on various bodily tissues to heighten thermogenesis, allowing calories to be burned off immediately as heat rather than stored as fat. Unfortunately, these substances are inhibited in many people, especially in those who are overweight. By revving up UCP activity, omega-3s shift your body into a fat-burning mode, promoting a leaner physique.

Omega-3s can be consumed by eating cold-water fish (such as wild salmon, trout and mackerel) and/or flax oil. Soy, walnuts and hemp oil also contain modest amounts of omega-3 fats. Most people, however, do not consume enough of these food sources to satisfy omega-3 requirements. If so, it is beneficial to consume fish oil supplements. They come in capsule form (usually gel caps) and should be taken at mealtime. For women, a 4- to 6-gram dose is recommended using a formula of 1 gram for every 25 pounds of bodyweight (each capsule is usually 1 gram). It’s generally best to consume half the dose in the morning and the other half at night.

Remember, though, that omega-3s – like all dietary fats – are calorically dense. In order to realize positive changes in body composition, you need to make sure that total caloric intake is within your metabolic range. Calories do count and you can’t lose body fat if intake is greater than expenditure. What’s more, high doses of omega-3s can potentially increase bleeding time. Check with your physician if any concerns exist.

Brad Schoenfeld, Ph.D., CSCS, CSPS, FNSCA is an internationally renowned fitness expert and widely regarded as one of the leading authorities on training for muscle development and fat loss. He is a lifetime drug-free bodybuilder, and has won numerous natural bodybuilding titles. He has published over 60 peer-reviewed studies on various exercise- and nutrition-related topics. Brad is a best-selling author of multiple fitness books including The M.A.X. Muscle Plan (Human Kinetics, 2012), which has been widely referred to as the “muscle-building bible” and Strong and Sculpted (Human Kinetics, 2016), which details a cutting-edge, body-sculpting program targeted to women. Brad also has authored the seminal textbook Science and Development of Muscle Hypertrophy (Human Kinetics, 2016), the first text devoted to an evidence-based elucidation of the mechanisms and strategies for optimizing muscle growth. In total, Brad’s books have sold over a half-million copies. For more information, visit For more information, visit

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