Protein or Carbohydrates?

This has got to be the biggest controversy in modern bodybuilding. Bodybuilders will say you've got to consume loads of protein to pack on quality muscle mass and increase strength. Nutrition experts say that you must eat a high carbohydrate diet, particularly complex carbs, to improve strength and size, and say that a high protein is of no benefit. Who is right? You could say both are right. Only a few studies have been carried out looking into high protein intake and improvements in strength and muscle size. The results are inconclusive. Study design was poor, often only having very few subjects, who may be over-training or under-training. Other aspects of diet were often overlooked and most were only carried out on novice weight trainers who may not know how to train correctly. Also, the topic of anabolic steroids is avoided which does increase demand for protein. Protein Muscle consists mainly of two proteins, actin and myosin. The turnover rate of amino acids in these proteins is high, and increases upon stimulation such as exercise. If the muscle is worked to maximum effort like during a correctly executed bodybuilding workout, turnover is extremely high. Hence, there is a large demand from the body's pool of amino acids. High carb fans say this demand can be met by only a moderately higher than normal protein intake. High protein fans argue very high levels of protein are needed to meet demand. Bodybuilders who have plateaued in their gains for long periods, have dramatically increased their protein intake and started making gains. Also anabolic steroids increase the rate of protein synthesis within muscle cells, further increasing demand for protein. Carbohydrate The argument for a high carb intake comes from the fact that we need energy to fuel our workouts and to recuperate and grow. This is certainly the case for athletes who may need as much as 60% of their energy intake from carbs. High carb advocates also say that a