Vitamin D Overdose: How Much is Too Much? - Healthline
2024年11月21日 · This is a detailed review of vitamin D toxicity and how much vitamin D is considered too much. Toxicity is rare but can occur with extremely high doses.
High-Dose Vitamin D Benefits and Risks: What Research Reveals
High-dose vitamin D supplementation refers to intake levels significantly exceeding the National Institutes of Health (NIH) recommendations of 600 to 800 IU per day. Higher doses of vitamin D supplements, generally defined as exceeding 4000 IU daily, are typically used to address vitamin D deficiencies or specific health conditions.
Amazon.com: Vitamin D3 4000 Iu
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What Vitamin D Dosage Is Best? - Healthline
2024年12月20日 · In the United States, current guidelines suggest that consuming 400–800 International Units (IU), or 10–20 micrograms (mcg), of vitamin D should meet the needs of 97%–98% of all healthy...
Theralogix Thera-D 4000 Vitamin D Supplement - 4,000 IU (100 …
2021年1月13日 · Immune Support Supplement: Thera-D 4000 supports healthy immune function to help your body stay resilient with 4,000 IU (100 mcg) of vitamin D per tablet* Purity Tested: Our USA-manufactured supplements are independently verified for potency and purity by NSF; gluten-free, dye-free, vegetarian, and made with premium ingredients
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Amazon.com: 4000 Iu Vitamin D
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Vitamin D - Health Professional Fact Sheet - Office of Dietary ...
The largest trial to date of vitamin D supplements for diabetes prevention randomized 2,423 men and women age 25 years and older (mean age 60 years) with prediabetes and overweight or obesity (mean BMI of 32.1) to 100 mcg (4,000 IU)/day vitamin D 3 or placebo for a median of 2.5 years . Most participants (78%) had adequate serum levels of ...
Vitamin D-3 4000 IU Softgels - NOW Foods
NOW ® Vitamin D-3 softgels supply this key vitamin in a highly-absorbable liquid softgel form. Vitamin D is normally obtained from the diet or produced by the skin from the ultraviolet energy of the sun.
Vitamin D - NHS
If you choose to take vitamin D supplements, 10 micrograms a day will be enough for most people. Do not take more than 100 micrograms (4,000 IU) of vitamin D a day as it could be harmful. This applies to adults, including pregnant and breastfeeding women and the elderly, and children aged 11 to 17 years.
Long-term supplementation with 3200 to 4000 IU of vitamin D
2023年2月28日 · We summarized reported harmful effects of a daily vitamin D supplement of 3200–4000 IU in trials lasting ≥ 6 months. We performed a systematic review and meta-analysis of randomized controlled trials in several databases and identified 22 trials reporting safety data.