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Doctor insights on: Excess Vitamin A And Vision Problems

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Can a vitamin deficiency cause fatigue and the need for excess sleep?

Can a vitamin deficiency cause fatigue and the need for excess sleep?

Yes: But it could be many other things as well. Don't self-diagnose. If you are consistently getting at least 7-8 hours of uninterrupted sleep a night and still feel fatigued, please see a doctor. ...Read more

Change In Vision (Definition)

There are many types of eye problems and visual disturbances. These include blurred vision, halos, blind spots, floaters, and other symptoms. Blurred vision is the loss of sharpness of vision and the inability to see small details. Blind spots (scotomas) are dark "holes" in the visual field in which ...Read more


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Can excess intake of vitamin a cause complications?

Can excess intake of vitamin a cause complications?

Excess Vitamin A: Some acute symptoms include nausea, vomiting, headache, dizziness, blurred vision, & loss of muscle coordination. ...Read more

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Can high levels of vitamin A from diet alone cause hair loss?

Can high levels of vitamin A from diet alone cause hair loss?

No.: Vitamin A in usual diet is not known to cause hair loss. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. ...Read more

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Can a thyroid problem cause people to be light headed too? Can it also cause nausea, and trouble sleeping, and a lack of memory?

Can a thyroid problem cause people to be light headed too? Can it also cause nausea, and trouble sleeping, and a lack of memory?

Yes: Thyroid issues can cause the above complaints. If you suspect a thyroid problem, see your doctor to get a blood draw. ...Read more

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Is there such thing as having TOO much vitamin C in your body? I heard it can cause other health problems in high amounts

Is there such thing as having TOO much vitamin C in your body? I heard it can cause other health problems in high amounts

Vitamin C: For adults, the recommended daily dose is 65 to 90 mg a day, and the upper limit is 2 grams a day. Although too much dietary vitamin C is unlikely to be harmful, megadoses of vitamin C supplements may cause nausea, vomiting and diarrhea, heartburn Abdominal bloating and cramps, headache Insomnia and Kidney stones ...Read more

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Could brain damage cause a loss of night vision(pitch black at night) and other vision changes in a 16 yo male?

Could brain damage cause a loss of night vision(pitch black at night) and other vision changes in a 16 yo male?

Yes it can,what caus: Yes it can and with your symptoms of headache, nausea and nervousness and depending on cause of brain damage, you need to be evaluated by a neurologist and a neuro ophthalmologist asap.You are 16 years old and have to be taken by your parents to the doctors, if this question pertains to you. You are taking resperidone for bipolar disorder or schizophrenia?Follow up with your psychiatrist as well. ...Read more

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Fatigue affecting life for 3 months. Can a vitamin D level of 20 cause fatigue and depression? If so, can supplementing it with 2,000 IU daily help?

Fatigue affecting life for 3 months. Can a vitamin D level of 20 cause fatigue and depression? If so, can supplementing it with 2,000 IU daily help?

Vitamin D3: Fatigue and depression can be related to low vitamin D3. At a level of 20, 2K IUs sounds low. Please check w/your doc but many people use 5K daily. Peace and good health. ...Read more

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I have a reading of 13; for vitamin D. Could that cause loss of appetite?

I have a reading of 13; for vitamin D. Could that cause loss of appetite?

Perhaps indirectly: VIt. D deficiency has many symptoms but poor appetite is not a classic symptom. However, it can cause depression and depression can be associated with poor appetite. Adults need 5-8000 iu of D3 a day to achieve optimal levels of 50-80. See http://tinyurl.com/zzpfon8 and http://tinyurl.com/2chkcer A more common cause of poor appetite is zinc deficiency. Try zinc picolinate 30 mg/day. ...Read more

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Can a vitamin or mineral deficiency cause or contribute to sciatica and if so, which ones?

Can a vitamin or mineral deficiency cause or contribute to sciatica and if so, which ones?

No: Although vitamin deficiencies can cause peripheral nerve disorders, especially B-1 and B-12, the pain and pattern of sciatica is due invariably to nerve compression at root level in lumbosacral cistern or in passage through pyriformis muscle group. ...Read more

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If i'm taking biotin forte with zinc, but i also eat good diet with lots of beans and B vitamin foods- will this cause excess B and zinc to build up?

If i'm taking biotin forte with zinc, but i also eat good diet with lots of beans and B vitamin foods- will this cause excess B and zinc to build up?

No: There is no worry about B vitamins "building up." The only B vitamin that our body stores is B12 and it is non-toxic. The only B vitamin known to be toxic is B6 but one usually has to take over 200 mg/day; it is impossible to get anywhere near that via diet. Zinc toxicity is not known unless one ingests at least 100 mg/day long-term. Diet levels never approach this. So no need to worry. ...Read more

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Is it normal to get eye floaters in your early 20s. I also have stomach problems frequent urination hair loss and malabsorption?

Is it normal to get eye floaters in your early  20s. I also have stomach problems frequent urination hair loss and malabsorption?

Eye Floaters: Generally eye floaters are normal phenomenon and caused by small moving parts in your field of vision and are considered benign, though they may be annoying at times. Eye floaters can be a sign of a more serious condition, needing immediate medical attention if you notice a sudden increase in the number of eye floaters.Things to consider would be retinal detachment or tears, internal bleeding etc ...Read more

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What are the "problems" associated with low vitamin d beside the sun and bone issue ?

What are the "problems" associated with low vitamin d beside the sun and bone issue ?

Many risks &problems: Vit d is needed to absorb calcium. Low vit d can cause fatigue, muscle pain/ weakness, headaches, depression & also increases risk of infections, heart disease, cancer & risk of dying! see http://www.Drfranklipman.Com/symptoms-diseases-associated-with-vitamin-d-deficiency & http://articles.Mercola.Com/sites/articles/archive/2008/11/01/vitamin-d-is-a-key-player-in-your-overall-health.Aspx. ...Read more

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How much would vitamin a help your vision?

How much would vitamin a help your vision?

Not at all unless...: If you are not deficient in vitamin a then taking it will not help your vision at all. If you are deficient, then taking vitamin a will improve night vision. Extreme vitamin a deficiency, which is rare in the us, could damage the retina even leading to blindness. Besides vitamin a, related compounds, carotenoids like lutein & zaaxanthin, are good for our eyes and help prevent macular degeneration. ...Read more

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Can getting enough vitamin a improve your vision?

Can getting enough vitamin a improve your vision?

Only if deficient: If you get enough vitamin a from your diet or supplements, taking more will not help and too much can cause liver failure and bone loss. If you are having vision problems, see a specialist to find out the cause. ...Read more

Dr. Lourdes Margarita Landron-Garcia
442 doctors shared insights

Vitamin A (Definition)

Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucous membranes, and skin. It is also known as retinol because it produces the pigments in the retina of the eye. Vitamin A promotes good vision, especially in low light. It may also be needed ...Read more


Dr. Richard Bensinger
1,767 doctors shared insights

Vision (Definition)

Vision is a feature of a person's brain that allows him to see. He must have normal eyes, optic nerves (that stretch from the eyes to the back of his brain), and visual cortex (the vision center in the brain), in order to see properly. An ophthalmologist is a ...Read more