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According to the NIH Office of Dietary Supplements, functional B12 deficiency is most commonly seen in patients with one or more of the following: Age over 50 stomach acid production declines with age, and stomach acid is required to free B12 from food PPI or H2 blocker use reflux medications suppress the acid needed for B12 absorption Metformin use, which interferes with B12 absorption directly Vegan or vegetarian diets B12 is found almost exclusively in animal products Gut conditions including celiac, IBS, SIBO, and Crohns MTHFR mutations that affect how B12 is metabolized once absorbed Heavy alcohol use The symptoms of low B12 are easy to dismiss: fatigue, brain fog, low mood, tingling in the hands or feet, weakness, and shortness of breath on mild exertion
Low Ferritin Symptoms (The Complete Checklist) Low ferritin starves your tissues of oxygen-carrying capacity and disrupts the production of dopamine, serotonin, and thyroid hormone
Thats because vitamin D is a fat-soluble vitamin thats absorbed better with food, while B12 is a water-soluble vitamin that should be taken on an empty stomach, says Dr
Some are raised off the skin and you could feel them, and some almost look flat. Patients sometimes feel them, too, with some reporting tingling, itching or a feeling of warmth
Whole-body cryotherapy chambers require protective equipment for extremities and should only be used under proper supervision
In the end, the question-and-answer flow from the AI (in this case Gemini) was just too delightful not to share in full below
