had b12 injection but still tired Vitamin Side Effects and Safety Why Do I Feel Worse
Description
J M GUPTA May 26, 2024 at 3:04 AM

In August we intend to reduce our lower reference interval from 140 pmol/L to 110 pmol/L which we believe is a better reflection of patient results.
It's a tiny nutrient with tiny daily requirements
Cognitive issues like memory loss, difficulty concentrating, or mood swings may also indicate a deficiency