Nutrient Intake Calculator – Vitamin D
This nutrient intake calculator will help to estimate dietary intake of vitamin D and whether your regular daily diet can meet recommended dietary reference intakes (DRIs).   Functions and importance of vitamin D Vitamin D is a fat-soluble vitamin that supports the absorption of calcium and phosphorus, helping to maintain bone growth as well as the balance of serum calcium level1 European Food Safety Authority (EFSA) has established the role of vitamin D and contribution to normal bone and tooth development, as well as functioning of the immune system, in children aged 3 years and above and the general population2-5 Long-term vitamin D deficiency may cause rickets in infants and children, while low serum calcium level may lead to convulsion6 Suboptimal vitamin D levels in pregnant women have been associated with an increased risk of preterm birth and gestational diabetes, as well as worse cognition in the child7-10   Dietary intake of vitamin D Examples of key food sources containing vitamin D have been listed below11. Please input the approximate number of portions consumed for each item in a week, and a daily average intake will be calculated at the end to compare against DRIs. It can be difficult to obtain adequate vitamin D from food sources only as only a few foods contain vitamin D naturally, check the additional tips below on how to optimize vitamin D status6.