Animal studies also suggest that
high carb low protein diets maximise longevity: «The healthiest diets were the ones that had the lowest protein, 5 to 10 to 15 per cent protein, the
highest amount of carbohydrate, so 60, 70, 75 per cent carbohydrate, and a
reasonably low
fat content, so less than 20 per cent,» Professor Le Couteur said.»
Personally, I would only consider buying a protein powder that has a good macronutrient profile (
high in protein and low in carbs and
fats) and a minimal
amount of artificial ingredients and that tastes good and mixes well and is
reasonably priced.