Should I take vitamin B12 if my serum B12 level is high?

Common contributors to Vitamin B12 deficiency include: vegetarian/vegan diet stomach acid medications antibiotics oral contraceptives aspirin (ASA) blood sugar medications such as metformin  Normal serum vitamin B12 levels range between 200-900 pg/mL. Serum B12 levels may not accurately reflect tissue B12 levels. What this means is that you could have a tissue level deficiency that…

What is a vitamin?

A vitamin is a substance that your body needs in order to be healthy but cannot synthesize for itself.  As a result, vitamins must be taken in from food, or sunlight in the case of Vitamin D.

Vitamin A (Retinol)

Vitamin A is a fat-soluble vitamin. It is found naturally in many fruits, vegetables, eggs, whole milk, butter, fortified margarine, meat, and oily saltwater fish and can also be man-made in supplements.   Eating 5 servings of fruits and vegetables per day provides about 50% to 65% of the amount adults require for good health. Vitamin…

Vitamin D3 (Cholecalciferol)

Vitamin D is a fat-soluble vitamin. You’ll find small amounts of it in fatty fish such as salmon, herring, mackerel, sardines and tuna, and as an additive, in dairy products, juices, and cereals that are “fortified with vitamin D.” Most of your intake of Vitamin D, though, comes from skin exposure to sunlight.Vitamin D plays important…

Vitamin E (Tocopherol)

What is commonly referred to as Vitamin E is actually a group of related, fat-soluble compounds found in many foods and as a man-made supplement. Vitamin E is one of the anti-oxidant vitamins (along with C and B3).  It protects cells against oxidative damage. Because sufficient amounts of Vitamin E are easily obtained from foods,…