If you're not getting enough B12, you can experience anemia, fatigue, weakness, constipation, decreased appetite, weight loss, dizziness, lightheadedness, confusion, poor memory, soreness of your tongue and mouth, and tingling and numbness in your hands and feet, according to Harvard Health Publishing
Are you feeling tired, lethargic or have a mental fog
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And more intriguinglywhy does a peptide originally found in human gastric juice have such a profound effect on the entire body
Effect of administration route on the pharmacokinetics of cobalamin in elderly patients: a randomized controlled trial