David N. Snyder wrote:Nemo wrote:Carnitine.
Healthy children and adults do not need to consume carnitine from food or supplements, as the liver and kidneys produce sufficient amounts from the amino acids lysine and methionine to meet daily needs [1-3]. The Food and Nutrition Board (FNB) of the National Academy of Sciences reviewed studies on the functions of carnitine in 1989 and concluded it was not an essential nutrient . The FNB has not established Dietary Reference Intakes (DRIs)—including a recommended dietary allowance (RDA)—for carnitine .
from: National Institute of Health (U.S.) http://ods.od.nih.gov/factsheets/Carnit ... ofessional
Lysine is found in all meats and dairy products as well as in soybeans and many other vegan foods too.
Methionine is found in vegan foods in higher amounts than meat.
The one in 40,000 who cannot synthesize sufficient quantities to the point that they may even experience cardiac arrhythmia and death may disagree with you. Many more people under stress cannot produce enough even with a carnivorous diet. Pregnant women often become deficient for example. This is that debunked protein combining theory that only works for some people. Any serious veggie who does not have an axe to grind is painfully aware how unhealthy many vegetarians look. Many people are not adapted well to agriculture.