Whey Protein

Protein...the more the better is my motto. If you don’t have time to prepare a meal, you can always substitute it with an MRP (meal-replacement powder). These powders are typically composed of whey protein with a limited amount of carbs and little to no fat. (depends on the brand) Whey protein isn’t your ordinary, run-of-the-mill protein. Not only does it provide the building blocks of muscle protein, but it does a host of other things too. Researchers from McGill University in Montreal Canada gave 20 young adults (10 men, 10 women) a whey protein supplement (10 g, twice daily) or a casein (another kind of milk protein) placebo for three months. After 3 months of consuming their respective supplements, they found that the whey protein group had less fat, could perform better on a bicycle stress test, and had more energy (as measured as “time spent in activity”). (1)So the whey-protein fed subjects felt better, exercised better, and were just plain healthier. A daily serving of 20 grams of whey protein may provide that “boost” that your body needs. Also, keep in mind that the thermic effect of protein far exceeds that of carbs or fat. This means that when you consume protein, you'll get a greater increase in metabolic rate!(2)
References
1. Lands LC, Grey VL, Smountas AA. Effect of supplementation with a cysteine donor on muscular performance. J Appl Physiol 1999;87:1381-5.
2. Welle S, Lilavivat U, Campbell RG. Thermic effect of feeding in man: increased plasma norepinephrine levels following glucose but not protein or fat consumption. Metabolism 1981;30:953-8.