Culture media from 24-hour incubated cells were collected, stored at -80 C, and analyzed for urea concentration using LC/MS/MS API3000, normalized to total cell protein
Excellent dietary sources include : Meat and poultry : beef, lamb, pork, chicken, and particularly organ meats such as liver Fish and shellfish : salmon, trout, tuna, sardines, mackerel, and clams (which are exceptionally rich in B12) Dairy products : milk, cheese, and yoghurt Eggs : particularly the yolk For patients following plant-based diets or those with significantly reduced appetite, fortified foods can provide B12, including fortified breakfast cereals, plant-based milk alternatives, nutritional yeast, and some meat substitutes
Current Opinion in Biotechnology, 65 , 118-128
At 10 -8 M, no proliferative effect was observed consistent with the follicle results
The status of these substances in sport, nor whether an athlete has a medical exemption, has no bearing on how customs and immigration laws are enforced in specific countries
Published on March 30th, 2026