While vitamin D deficiency may be seen in cases of obesity, further studies are needed to determine whether supplementing with this vitamin helps prevent weight gain ( 57). Anxiety Additionally, some other organizations, such as the Endocrine Society, define blood levels of vitamin D lower than 30 ng/mL (75 nmol/L) as a vitamin D deficiency ( 1). summary Lynch, John (1998). Pacific languages: an introduction. University of Hawaii Press. p.97. ISBN 0-8248-1898-9.

Vitamin D levels greater than 100 ng/mL may be harmful. Toxicity symptoms have been reported at extremely high blood levels in cases where people took megadoses (very high doses) of vitamin D supplements for extended periods of time. Elevated blood calcium levels Cystic fibrosis, Crohn's disease and celiac disease: These conditions can prevent your intestines from adequately absorbing enough vitamin D through supplements, especially if the condition is untreated. Keep in mind that it’s important not to consume more than 4,000 IU of vitamin D without a doctor’s permission, as it exceeds the safe upper limits of intake and is not linked to additional health benefits ( 14). summary A separate study in pregnant women found that having adequate vitamin D levels may help reduce anxiety symptoms, improve sleep quality, and even help prevent postpartum depression ( 59). You typically get vitamin D from animal sources. Fungi, like wild mushrooms and mushrooms exposed to UV light, also contain vitamin D. Other vegetarian sources include vitamin-D fortified soy milk and cow’s milk, fortified orange juice, and fortified grains. Which fruits and vegetables have vitamin D?This is because having too much vitamin D in the body can lead to high levels of calcium, which can lead to water loss through too much urination and calcification of the kidneys ( 17). d in Ittzés, Nóra (ed.). A magyar nyelv nagyszótára (‘A Comprehensive Dictionary of the Hungarian Language’). Budapest: Akadémiai Kiadó, 2006–2031 (work in progress; published A–ez as of 2023) D" Oxford English Dictionary, 2nd edition (1989); Merriam-Webster's Third New International Dictionary of the English Language, Unabridged (1993); "dee", op. cit. Latin-script letters ) harf; A a, B b, C c, Ç ç, D d, E e, F f, G g, Ğ ğ, H h, I ı, İ i, J j, K k, L l, M m, N n, O o, Ö ö, P p, R r, S s, Ş ş, T t, U u, Ü ü, V v, Y y, Z z

Additionally, your bones become more fragile with age. Maintaining adequate blood levels of vitamin D can help preserve bone mass with age and may protect against fractures ( 8, 38). People with darker skinInterestingly, a vitamin D deficiency can also harm the kidneys and lead to severe complications in those with kidney disease. That’s one reason why maintaining optimal blood levels of vitamin D is critical ( 21, 22). Summary Obtaining sufficient vitamin D from natural (nonfortified) food sources alone is difficult. For many people, consuming vitamin D-fortified foods and exposing themselves to some sunlight are essential for maintaining a healthy vitamin D status. However, some groups might need dietary supplements to meet their vitamin D requirements. The following groups are among those most likely to have inadequate vitamin D status. Breastfed infants Most trials of the effects of vitamin D supplements on bone health also included calcium supplements, so isolating the effects of each nutrient is difficult. In addition, studies provided different amounts of nutrients and used different dosing schedules. Clinical trial evidence on older adults