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<\/p>\nWhat are the real benefits of vitamin B12?<\/strong><\/p>\n B12 plays a crucial role in maintaining nerve health, producing red blood cells, and supporting brain function. Dr Saraf said that getting enough helps prevent fatigue, weakness, mood changes, and even memory issues. \u201cFor vegetarians and vegans, it\u2019s especially important since B12 is mostly found in animal products,\u201d said Dr Saraf.<\/p>\n Should everyone take it as a supplement?<\/strong><\/p>\n Story continues below this ad<\/p>\n Not necessarily, contended Dr Saraf. \u201cMany people get enough from their diet, especially if they eat fish, poultry, eggs, or dairy. Those at higher risk of deficiency<\/a><\/strong>, such as vegetarians, older adults, people with gut absorption problems, or those on long-term medications like metformin, may need supplements. For others, taking it regularly may not provide much benefit,\u201d said Dr Saraf.<\/p>\n Can too much B12 be harmful?<\/strong><\/p>\n While toxicity is rare because the body generally eliminates excess, very high doses can sometimes cause acne-like breakouts, dizziness, or stomach discomfort, as apprised by Dr. Saraf. \u201cFor individuals with certain health conditions, like kidney disease, it may not be advisable to take it without medical guidance,\u201d said Dr Saraf.<\/p>\n What\u2019s the safe way to approach B12 intake?<\/strong><\/p>\n![\"gut](\"https:\/\/www.europesays.com\/us\/wp-content\/uploads\/2025\/09\/gut-health_600_getty-1.jpg\")
Here\u2019s what you should know (Photo: Getty Images\/Thinkstock)<\/p>\n