2019 Update. Since making that vid below based on a protein overfeeding study, more data has accumulated showing protein is the least likely macro nutrient to convert to bodyfat during overfeeding. In fact, it’s exceedingly difficult to gain bodyfat over eating protein. I have being saying that for three plus decades and the claims all calories are created equal debunked a while ago, yet, some still cling to it. There’s a bunch of long held outdated nutritional information finally being debunked, and this is yet another. Here’s a recent review paper that examines the effects of the different macro nutrients and their respective impacts on bodyfat. They conclude:
In this vid I cover the (seemingly) never ending debate regarding the old advice that “protein intakes above your requirements will just be converted to bodyfat” that is the mantra of traditional nutrition advice. Is it true?
More Protein Myths Covered HERE
This is the study discussed in this video:
The effects of consuming a high protein diet (4.4 g/kg/d) on body composition in resistance-trained individuals
Jose Antonio*, Corey A Peacock, Anya Ellerbroek, Brandon Fromhoff and Tobin Silver
Journal of the International Society of Sports Nutrition 2014, 11:19 doi:10.1186/1550-2783-11-19
The consumption of dietary protein is important for resistance-trained individuals. It has been posited that intakes of 1.4 to 2.0 g/kg/day are needed for physically active individuals. Thus, the purpose of this investigation was to determine the effects of a very high protein diet (4.4 g/kg/d) on body composition in resistance-trained men and women.
Thirty healthy resistance-trained individuals participated in this study (mean ± SD; age: 24.1 ± 5.6 yr; height: 171.4 ± 8.8 cm; weight: 73.3 ± 11.5 kg). Subjects were randomly assigned to one of the following groups: Control (CON) or high protein (HP). The CON group was instructed to maintain the same training and dietary habits over the course of the 8 week study. The HP group was instructed to consume 4.4 grams of protein per kg body weight daily. They were also instructed to maintain the same training and dietary habits (e.g. maintain the same fat and carbohydrate intake). Body composition (Bod Pod®), training volume (i.e. volume load), and food intake were determined at baseline and over the 8 week treatment period.
The HP group consumed significantly more protein and calories pre vs post (p < 0.05). Furthermore, the HP group consumed significantly more protein and calories than the CON (p < 0.05). The HP group consumed on average 307 ± 69 grams of protein compared to 138 ± 42 in the CON. When expressed per unit body weight, the HP group consumed 4.4 ± 0.8 g/kg/d of protein versus 1.8 ± 0.4 g/kg/d in the CON. There were no changes in training volume for either group. Moreover, there were no significant changes over time or between groups for body weight, fat mass, fat free mass, or percent body fat.
Consuming 5.5 times the recommended daily allowance of protein has no effect on body composition in resistance-trained individuals who otherwise maintain the same training regimen. This is the first interventional study to demonstrate that consuming a hypercaloric high protein diet does not result in an increase in body fat.
Will Brink is the owner of the Brinkzone Blog. Will has over 30 years experience as a respected author, columnist and consultant, to the supplement, fitness, bodybuilding, and weight loss industry and has been extensively published. Will graduated from Harvard University with a concentration in the natural sciences, and is a consultant to major supplement, dairy, and pharmaceutical companies.
His often ground breaking articles can be found in publications such as Lets Live, Muscle Media 2000, MuscleMag International, The Life Extension Magazine, Muscle n Fitness, Inside Karate, Exercise For Men Only, Body International, Power, Oxygen, Penthouse, Women’s World and The Townsend Letter For Doctors.
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