While the upper limit for B12 intake [has not been] established ... as the typical recommended daily allowance ranges from 2.4 to 2.8 micrograms. What are the side effects of too much B12 in ...

Your body needs red blood cells to make DNA. Your body loses 1% of your oldest red blood cells daily. Vitamin B12 with vitamin B9 (folate) helps your body replenish the red blood cells you lost.

The best time of day to take vitamins depends on the type and its effects on the body. For optimal absorption, taking them at mealtime is sometimes recommended.

Include one egg daily to improve the B12 levels naturally. The amount of vitamin B12 in an egg depends on its size and a large egg contains about 0.6 mcg of vitamin B12 in it. The recommended ...

For pregnancy and lactation, that increases to 2.8 mcg daily, according to Harvard Health. No upper limit has been set for ...