Serious and rarer side effects can include muscle cramping, irregular heartbeat, shortness of breath, slurred speech, vision changes, chest pain and weakness on one side of the body
European Journal of Endocrinology , 143(4), 535541
They can check your health and risk factors to suggest whats best for you
Mice undergoing in vivo reprogramming were found to become depleted in B 12 and show signs of methionine starvation while supplementing reprogramming mice and cells with B 12 increased reprogramming efficiency, indicating a cell-intrinsic effect
If you are also low in iron, B12 alone will not fully resolve anemia, which is why comprehensive blood work helps
If we are lucky and our mother had a good supply of B12, we would be born with a store, but this eventually runs out or stops being accessible for many reasons