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IGF-1 can also help decrease age-related muscle wasting (also called sarcopenia or muscle atrophy) by preserving lean muscle mass
Some researchers, like the ones behind a 2011 study, contend that digestive enzymes oxidize or destroy orally administered glutathione and prevent "significant intact absorption."2 Fortunately, there are some common solutions to the absorption problem, as explained in the following subsections
L-carnitine can be given with or without food, but giving it with food can decrease the risk of digestive upset
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