Getting enough Vitamin D, all year long
By Molly Martyn, MD
Getting enough Vitamin D is an important part of staying healthy. Vitamin D helps with calcium absorption, and thus is a critical part of how our bodies make and maintain strong bones. Research shows that it also plays a role in keeping our immune systems healthy and may help to prevent certain chronic diseases.
Many of us get our Vitamin D from the sun and from drinking milk, but families often wonder how to help their children get enough Vitamin D to meet daily requirements.
The American Academy of Pediatrics [LINK: http://www.healthychildren.org/English/healthy-living/nutrition/pages/Vitamin-D-On-the-Double.aspx] recommends that infants receive 400 International Units (IU's) per day of Vitamin D. For children older than one year, the recommended amount is 600 IU's per day.
Vitamin D is found in a number of foods, some naturally and some through fortification. Foods that are naturally high in Vitamin D include oily fish (such as salmon, sardines, and mackerel), beef liver, egg yolks, mushrooms, and cheese. Below are some estimates of Vitamin D levels (per serving) of a variety of foods.
Salmon (3.5 oz) contains 360 IU's of Vitamin D per serving
Tuna (canned, 1.75 oz) has 200 IU's