Egg Nutrition Center Blog

Brief Protein Research Round Up

Here’s what we’ve been reading here at ENC regarding protein the past couple of weeks! Check the articles out!

Protein/Macronutrient Composition
“Myofibrillar muscle protein synthesis rates subsequent to a meal in response to increasing doses of whey protein at rest and after resistance exercise”  (Witard et al. Am J Clin Nutr. E-pub ahead of print)This randomized controlled trial in resistance-trained young men (N=48) showed that 20 and 40 g of whey protein isolate (WPI) consumed immediately after exercise increased myofibrillar muscle protein synthesis by ~50%, whereas no stimulation was observed with 10 g WPI.Both Dietary Protein and Fat Increase Postprandial Glucose Excursions in Children With Type 1 Diabetes, and the Effect Is Additive” (Smart et al. Diab Care. 2013;36:3897-3902)This randomized controlled crossover trial in children with type 1 diabetes (N=33) showed that breakfast meals containing 40 g protein or 35 g fat resulted in greater postprandial glucose excursions; the higher protein meal had a protective effect on the development of hypoglycemia. 

“Protein leverage and energy intake” (Gosby et al. Obes Rev. 2013;E-pub ahead of print)

This analysis of data collected from 38 published experimental trials measuring ad libitum intake in subjects confined to menus differing in macronutrient composition showed that percent dietary protein was negatively associated with total energy intake irrespective of whether carbohydrate or fat were the diluents of protein.

Tell us any interesting protein research that you have recently read.

Author: Anna Shlachter MS, RDN, LDN