crazychick
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Does it actually stop the hair loss?
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yeah, not talking about taking vitamins for the epilepsy, but about taking them to try and counteract the side effects
Biotin doesn't have any known side effects -- it's a B vitamin.
High doses of vitamin A have been reported to cause some problems, such as:
- Irritability
- Fatigue or lethargy
- Psychiatric problems that mimic severe depression
- Psychiatric problems that mimic schizophrenia (such as hallucinations or paranoia)
- Drowsiness
- Dizziness
- Delirium
Vitamin B complex overdose can cause vitamin B toxicity, depending on whether an overdose of niacin (B3), pyridoxine (B6) or folic acid (B9) has been taken.
The effects of hypervitaminosis B (the medical term for high levels of vitamin B in the body) depend on which member of the vitamin B complex is present in excess. Some B vitamins appear to cause no adverse effects when ingested in large quantities, whereas others can have harmful consequences.
Vitamin B Complex Functions
The eight nutrients that comprise the vitamin B complex have roles in cell growth and metabolism, DNA synthesis, nerve function and energy production. They are obtained from both plant and animal foods, except for vitamin B12 (cobalamin), which is found in animal foods only.
Three B vitamins can cause problems when taken in overdose. The adult recommended daily allowances (RDAs) for these vitamins are:
A regular intake of any of these vitamins above their upper limit can lead to symptoms of vitamin B toxicity.
- B3 (niacin) – RDA 16 milligrams per day (mg/day) for men and 14 mg/day for women; upper limit 35 mg/day
- B6 (pyridoxine) – RDA 1.3 mg/day for both men and women; upper limit 100 mg/day
- B9 (folic acid) – RDA 400 micrograms per day (μg/day) for both men and women; upper limit 1000 μg/day.
Symptoms of Vitamin B Complex Overdose
Unlike vitamin A (which is stored in the liver when more is consumed than can be used), excess B vitamins are removed from the body in the urine. For this reason, vitamin B ingested in the diet is unlikely to have harmful effects, even when B-rich foods are eaten in large amounts. Vitamin B causes problems when too much is consumed in the form of dietary supplements.
Vitamin B1 (thiamine), B2 (riboflavin), B5 (pantothenic acid), B7 (biotin) and B12 (cobalamin) have no demonstrated toxic effects.
- The effects of niacin overdose include flushing and dry, itchy skin. Headaches, indigestion, liver damage and impaired vision have also been reported. These symptoms may occur as side-effects in people who have been prescribed niacin as a medication to prevent thickening of the walls of the arteries.
- The main symptom of vitamin B6 overdose is numbness, tingling or pain in the fingers and toes. There are reports linking excessive B6 intake with painful sores on the skin and with birth defects, but there is not enough evidence to conclude that B6 was definitely the cause.
- Taking too much vitamin B9 does not cause problems in itself, but high levels of folic acid can mask the symptoms of vitamin B12 deficiency. Vitamin B12 deficiency is a progressive condition and a delay in its diagnosis can result in permanent damage to the nervous system. There is also evidence that excess vitamin B9 can worsen the effects of B12 deficiency.
Vitamin B Toxicity Treatment
In most cases, the effects of overdosing clear up when vitamin B intake is reduced to the RDA. However, the sensory problems caused by excess vitamin B6 can become irreversible if large overdoses have been taken over a long period of time.