Learning about how prevalent vitamin B-12 deficiencies truly is after reading this (below) I can see how people thrive on the carnivore diet, when I added resistant starch to the carnivore diet I had way better results with 0 side effects, it is truly miraculous in my opinion (I just hope it is not to good to be true? I still worry about the highly acidic environment?):
FACTORS LEADING TO B12 DEFICIENCY
Since apart from fortified and animal-based foods the number and vitality of certain strains of B12 manufacturing probiotic bacteria in our intestines is the key source of this vitamin, the following factors can lead to B12 deficiency by damaging intestinal flora balance: Antibiotics (also found in meat, dairy farmed fish, and tap water), laxatives, chlorine (Sucralose, Splenda, tap water, swimming pools, etc.), sodium fluoride (toothpastes, tap water, etc.), caffeine (coffee, tea, cola drinks, green tea), refined sugar, alcoholic beverages, unhealthy eating habits (lack of dietary fibre), stress, anxiety, depression, etc.
Also celiac disease, IBS, Crohn’s disease, stomach surgery, autoimmune disorders, diabetes and some other conditions may contribute to the deficiency.
The following drugs reduce absorption of vitamin B12: Metformin (a medication for individuals with type 2 diabetes), nitrous oxide (commonly used anaesthetic), chloramphenicol and neomycin (antibiotics), colchicine (medicine for gout treatment), Proton-pump inhibitors (e.g., omeprazole and lansoprazole), Proton-pump inhibitors, Histamine2 (H2)-receptor antagonists (e.g., cimetidine, famotidine, and ranitidine), cholestyramine (used in the treatment of high cholesterol).
Individuals taking above mentioned drugs and medications that inhibit gastric acid secretion should consider taking sublingual methylcobalamin form of vitamin B12. …More