Large protein intake is historically what we were designed to consume though.... we still have the enzyme in our system that can convert proteins into Vitamin C, it just is no longer active as our diets moved from carnivorous to omnivorous. Supplement protein from whey powder is actually scientifically speaking better for your body than protein from meat, as it doesn't have the accompanying fats and cholesterols that are damaging to your kidneys and liver.
Yes regular training will get you looking decent, but diet is the other half of the battle. If you don't have protein intakes you will simply tone and not build muscle or strength as your body can't repair the damage that exercise does to the body. The RDI of protein for the average male is 55g, I have that much for breakfast alone. 55g isn't enough if you are weightlifting or participating in other strenuous activity, it's fine if you're sitting on your bum doing nothing though. The way RDI for protein is calculated is .36g per lb of body weight, which means someone weighing in at 200lb would require 72g of protein by the RDI guidelines, not feasible for an active individual. Consuming the RDI and training will result in muscle loss over time. If you are exercising you need to be consuming between .64g and .91g per lb of body weight daily. So a 200lb individual would actually require between 128g and 182g of protein.
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