High Vitamin B12: Understanding Elevated Levels A vitamin B12 level over 1000 pg/mL is generally considered high
Essentially, it allows your body to break down carbohydrates and fat for fuel and metabolize protein for muscle-building
1,2 Serum vitamin B 12 levels may be artificially elevated in patients with alcoholism, liver disease, or cancer because of decreased hepatic clearance of transport proteins and resultant higher circulating levels of vitamin B 12
When used responsibly and under professional supervision, it can help patients feel stronger, recover faster, and perform at higher levels both physically and mentally
[2] For this reason, elevated serum homocysteine over 15 micromol/L and methylmalonic acid (MMA) over 0.271 micromol/L are considered better indicators of B 12 deficiency, rather than relying only on the concentration of B 12 in blood