Supplementation with L-Carnitine restores the level in muscle that was altered by natural losses that occur naturally with age, according to a new study with rats. The researchers form the University of Dijon report that supplementation with L-Carnitine improved muscle capabilities in the old animals. According to the published results decreases in abdominal fat were also observed.

Scientists at the Institute for Brain Aging and Dementia, University of California in Irvine have written an overview of the effects of nutrients on the aging brain. They have identified a group of nutrients that can directly or indirectly protect the energy producing mitochondria from damage and improve their function and named the supplements "mitochondrial nutrients". The direct protection includes preventing the generation of oxidants, scavenging free radicals or inhibiting oxidant reactivity, and elevating cofactors of defective mitochondrial enzymes stimulating their and therefore the mitochondria’s energy producing activity.