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Always interpret alongside kidney function
Inadequate amounts of NAD+ make it harder to convert energy broken down from food
Vitamin B12 Deficiency Causes of vitamin B12 deficiency include difficulty absorbing vitamin B12 from food, lack of intrinsic factor (e.g., because of pernicious anemia), surgery in the gastrointestinal tract, prolonged use of certain medications (e.g., metformin or proton pump inhibitors), and dietary deficiency
If youre vegan and not supplementing adequately, you may be at higher risk of deficiency.Whether injections or oral supplements are best depends on your levels and absorption
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