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These products are not intended for human consumption, and nothing in this guide should be read as a recommendation for personal use
S.SharifiF.JalilianE.et al (2018)
From the outside, it can be difficult to tell whether your body is experiencing a deficiency of this important vitamin
[14] Small clinical trials indicate that maternal supplementation of 4,000 IU day or staggered 50,000 IU oral doses can safely maintain 25-hydroxyvitamin D above 30 ng mL without inducing hypercalcaemia, whereas single injections of 300,000 IU are reserved for severe malabsorption emergencies when benefits outweigh theoretical teratogenic risk
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