Sep 19, 2021 · Scientific literature and health experts assert that 50+ ng/ml, not 30 ng/ml, is the optimal serum vitamin D level we should all strive for to support our health and well-being.

Nov 30, 2025 · Most adults need at least 15 micrograms (mcg)—or 600 international units ( IU)—of vitamin D daily to maintain healthy levels. 1 The amount recommended for children …

Apr 16, 2020 · To sum up, they estimated that a vitamin D level of 20 ng/mL or higher was adequate for good bone health, and subsequently a level below 20 was considered a vitamin …

Aug 15, 2025 · Aim for 40–60 ng/mL (100–150 nmol/L) to support optimal health — not just to avoid deficiency. Combine sensible sun exposure, nutrient-rich foods, and supplements when …

Jan 10, 2018 · According to most standards, sufficient values for vitamin D are between 30 and 60 ng/mL. For those with chronic conditions like diabetes, autoimmune disease, or cancer, it’s not …

Mar 21, 2025 · Taking a vitamin D supplement or a multivitamin with vitamin D may help improve bone health. The recommended daily amount of vitamin D is 400 international units (IU) for …

Apr 25, 2025 · Generally adequate vitamin D levels in the blood are 20 ng/ml or above for adults. People aged 1 to 70 years should aim to get at least 15 mcg or 600 IU of vitamin D per day.

Apr 30, 2019 · Data derived from randomized clinical trials have convinced some influential experts, such as Harvard’s Chair of Nutrition, that we should shoot for this kind of range, levels …

Oct 25, 2024 · Vitamin D (calciferol) keeps bones strong and supports your immune system. People ages 1 to 70 need 15 mcg (600 IU) per day; people 70+ need 20 mcg (800 IU).

Understanding and maintaining normal Vitamin D levels can significantly impact your bone health, immune function, and disease prevention. This comprehensive guide explores everything from …