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A deficiency in Vitamin D can cause hair loss or thinning hair

And other concurrent issues can mask progress: if your sleep is poor, your iron is low, your thyroid is off, or your testosterone is suboptimal, fixing B12 alone won't solve everything

pylori bacterial infection or stomach ulcer You are over 50 You have a family history of B12 deficiency You are a vegan or vegetarian Youve had weight loss/bariatric surgery, since this surgery interferes with the release of B12 during digestion You have inflammatory bowel disease, leaky gut or other serious digestive disease You have acid reflux Youre a pregnant woman (who has increased needs for many nutrients) You take one of the following types of medications: antibiotics, anti-gout, blood pressure, birth control pills, cholesterol-lowering drugs, diabetes medications and antipsychotic drugs

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