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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 disregard age the only question becomes do light boxes supply adequate UVB to synthesize adequate vitamin D? From what I can tell from a review of the products ...


6

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 deficiency remain clinically asymptomatic. However they are at increased risk of developing acute haemolytic anemia (AHA) in the presence of oxidative agents, ...


3

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, that have not held up when done with supplements. It may turn out that many of the benefits of "Vitamin C" are really be related to fibre, since people were ...


3

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). Because of the sometimes subtle symptoms, getting appropiate screening based on risk factors and regular physician exams is important to discovering and managing ...


2

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 10 European countries and followed for almost 15 years. The homepage of the project is http://epic.iarc.fr . There's not a unified table providing summarized ...


1

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.gov/factsheets/Zinc-Consumer/#h8 Hope this helps.


1

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 mineralizing so your bone density may decline and cause bone pain (as stated by WebMD). I've experienced this, and it feels like an ache deep inside your limbs. I also had ...


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