Sickness tends to cause weight loss. For example, a severe burns victim can use up in excess of 12,000 calories per day!
Convalescents do not usually perform the same types of exercise as sports people, and so do not require stamina-boosters such as creatine. Convalescents tend to burn energy at a constantly high rate as the body heals itself, so require a greater general range of nutrients.
Whereas with bodybuilding, the chief tissue under construction is muscle, with convalescence, a wide range of body tissues often need to be rebuilt. Because the rebuilding of these body tissues requires a wide range of minerals and other nutrients supplements .