Vitamin B12 deficiency is a common health problem that can have serious consequences. Maintaining adequate amount of vitamin B12 intake through diet or supplements is important to prevent health risks ...

Read on to learn more about high homocysteine levels, including the symptoms, causes, and complications. Typical homocysteine levels are usually from 5 to 15 micromoles/liter (μmol/l).

B12 deficiency can elevate homocysteine levels, which is linked to an increased risk of heart diseases, high blood pressure, and other cardiovascular issues. Mouth ulcers, a swollen tongue, and ...

However, when these levels are elevated due to a vitamin B12 or folic acid deficiency, symptoms can range from mild to severe and include: Caffeine may affect homocysteine. Research shows that ...