Cyclists given 4 weeks of zinc supplementation were shown to have higher total and free testosterone levels after exhaustive exercise.
Whey protein a favourite supplement of those engaged in bodybuilding and sports may well be a bad idea if you suffer from acne.
Research by Melnik (2011) showed that whey protein was a particularly potent stimulator of insulin and IGF-1 release. These two hormones have the potential to increase the production of sebum and keratin, substances that when produced in excess can cause blockages in hair follicles, resulting in spots.
Those following a vegetarian diet maybe more liable to a potential creatine insufficiency. Meat and fish represent the primary dietary sources of creatine, so it makes sense that their exclusion from the diet would result in a greater chance of reduced body creatine stores. Vegetarians would therefore have to rely to much greater degree on [...]
Creatine is and energy storage molecule composed of the amino acids: arginine, glycine and methionine. It is primarily found in muscle tissue where it functions as an energy reserve, which can be accessed during bouts of intensive short duration physical activity.
Some of the most important functions that creatine is believed to exert:
· Enhances energy availability in the form of ATP – a universal energy molecule within cells. Used during bouts of intense physical activity.
· Rapid increases in muscle size, a volumising effect related largely to creatines ability to pull water into the muscle cells