Second, sample heterogeneity is a key factor
Some come from a quantitative Social Science, Economics, or Public Policy background
Answer: An accidentally high dose is not life-threatening, but you will likely experience severe side effects (extreme nausea, stomach distress) 2 to 4 hours later
It reduces oxidative stress on the body, helps break down nutrients from food, and regulates the bodys immune response
Excellent dietary sources include : Meat and poultry : beef liver (particularly rich), lamb, chicken, and turkey Fish and seafood : salmon, trout, tuna, sardines, and shellfish (especially clams and mussels) Dairy products : milk, cheese, and yoghurt provide moderate amounts Eggs : particularly the yolk contains bioavailable B12 Fortified foods : breakfast cereals, plant-based milk alternatives, fortified yeast extracts (such as Marmite), and fortified nutritional yeast For individuals following plant-based diets, fortified foods and supplements become essential , as naturally occurring B12 in plant foods is negligible or in forms poorly utilised by humans