Excessive intake of Vitamin B supplements can lead to gastrointestinal problems such as nausea, vomiting, and diarrhea. The body might struggle to process large amounts.
High doses of certain B vitamins, particularly B3 (Niacin), can cause skin reactions. These may include redness, itching, and flushing of the skin. Niacin flush is a common side effect.
Excessive consumption of Vitamin B6 over prolonged periods can lead to nerve damage, resulting in symptoms like tingling, numbness, and pain in the hands and feet.
High doses of certain B vitamins, particularly B3 (Niacin), can lead to liver toxicity. Chronic intake of large amounts of niacin can strain the liver, potentially causing liver damage.
Some individuals may experience allergic reactions to Vitamin B supplements. Symptoms can range from mild rashes and itching to more severe reactions like swelling.
Vitamin B supplements can interact with certain medications, altering their effectiveness. For example, Vitamin B6 can reduce the effectiveness of some anticonvulsant drugs.
Overconsumption of Vitamin B complex, particularly B2 (Riboflavin), can lead to excessive urination. This can result in dehydration if fluid intake is not adequately maintained.
High doses of Vitamin B12 can cause insomnia or difficulty sleeping. This is because B12 can increase energy levels, making it harder to relax and fall asleep.
Some individuals may experience headaches as a side effect of taking high doses of Vitamin B6 and B12. These headaches are usually mild but can be bothersome.
Excessive intake of Vitamin B6 can lead to increased anxiety and restlessness. This is due to its role in the production of neurotransmitters, which can overstimulate the nervous.
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