Related Episodes for How GLP-1 Drugs Support Weight Loss and Their Tradeoffs

“One hypothesis is that DNA repair enzymes, known as PARP (poly ADP-ribose polymerase), might be using up more NAD+ to fix the accumulated DNA damage that occurs with age. Alternately, the cellular pathway that recycles NAD+ may decline in performance with age.”

“The main ingredient-interaction evidence concerns polyphenol oxidase. A small controlled crossover study found that a high-PPO banana smoothie greatly reduced circulating flavan-3-ol metabolites compared with a low-PPO berry drink or capsule control.”

“The hydrolytic conversion of glucoraphanin to sulforaphane requires myrosinase, an enzyme co-located within the leaves, stems, and other components of the plants in which it is found. In humans, myrosinase-producing gut bacteria can convert unhydrolyzed glucosinolates to their cognate isothiocyanates, as well.”

“Based on findings from more recent studies using stable isotopes, which more accurately assess muscle protein anabolism and catabolism, Dr. Phillips believes that eating 1.2 to 1.6 grams of protein per kilogram of bodyweight (about 0.5 to 0.7 grams per pound) is likely optimal for muscle protein synthesis, especially as one ages.”

“Peak plasma flavan-3-ol metabolites after the banana smoothie were 84 percent lower than after the capsule, while the low-PPO berry smoothie produced levels similar to the capsule. PPO is released when plant tissue is cut, bruised, or blended and can react with selected polyphenols before they reach circulation.”