b12 injection timing Walk-In Clinic North West UK Best Time to Take Vitamin

The National Institutes of Health study reports that between 1.5% and 15% of the public has a deficiency

For more on unusual symptoms that can signal a deficiency in vitamin B12, check out this video: What blood tests reveal a vitamin B12 deficiency Your doctor may order either a blood test or a urine test to assess vitamin B12 levels

The injection is given intramuscularly typically into the upper arm or thigh

But people with a vitamin B-12 deficiency are usually treated with 500 mcg or more of vitamin B-12

Oral supplements go through the digestive system, which slows absorption and limits how much your body can take in at one time