6 votes
Accepted

Do light boxes effectively mimic the effects of natural sunlight to produce vitamin D?

Only two things affect the synthesis of vitamin D, and those are the amount of UVB photons penetrating the skin and the person's age. See my previous answer for an explanation and citations. So if we ...
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  • 9,435
6 votes
Accepted

Could any vaccines be dangerous for people with G6PD enzyme deficiency?

Glucose-6-phosphate dehydrogenase (G6PD) is an enzyme that protects red blood cell against oxidative damage. G6PD deficiency is one the most common genetic disorders. Most of the patients with G6PD ...
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3 votes

Can I use take pills to prevent micronutrient deficiencies and not worry about my diet too much?

The biggest issue with using supplements instead of food is that studies don't always measure what they think they're measuring. A lot of near-magical powers were ascribed to Vitamin C, for example, ...
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  • 3,769
3 votes
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Are there any symptoms of Vitamin D deficiency?

WebMD Signs and Symptoms of Vitamin D deficiency can be subtle, but can manifest as bone pain and muscle weakness. Also, excessive sweating(when not indicated due to exercise level and heat). ...
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  • 2,952
2 votes

Where can I find statistics about micronutrients deficiencies in European countries?

The most accurate data sets about nutrient intake of european population are linked to basically two sources: The EPIC cohort study, involving more than half a million participants recruited across ...
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  • 1,505
1 vote

Maximum safe dosage of zinc for 4-6 weeks

You are right, too much zinc could be harmfull but in your case you are at the upper limit. Zinc supplements should not exceed 40mg per day for adults. You find all details here: https://ods.od.nih....
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1 vote

Are there any symptoms of Vitamin D deficiency?

Vitamin D deficiency can actually cause or exacerbate depression, and it can manifest itself in feelings of tiredness, persistent sadness, weakness, etc... It also prevents your bones from ...
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