vitamin D what is it? “Vitamin” D (technically a hormone) is a crucial nutrient for immunity, bone health, mood, and many other processes. Deficiency in children causes rickets (deformed or twisted bones); in adults, it can lead to brain fog, osteoporosis, and increased risk of chronic diseases like cancer.
how much do i need? 0- 600 IU
600 - 5,000 IU
5,000+ IU
At least
600 IU
per day on average.
What’s IU? IU stands for International Units; it’s just another way to measure how much of a vitamin you’re getting.
It’s OK to get a little more some days and a little less other days. It’s also OK to get a lot more than the minimum. Especially if you’re making up for a previous period of deficiency.
There’s not much evidence for toxicity even up to 10,000 IU.
what is it?
Where can I get it?
Nutrition data comes from the US Government’s official nutrient database unless otherwise noted
Sunshine The absolute best source for Vitamin D is sun exposure; this allows your own body to manufacture however much it needs, with no risk of an overdose. In direct summer sunlight, 5-10 minutes per day without sunscreen should be enough. You might be deficient in Vitamin D if you work inside or rarely expose your skin to the sun.
Oysters 538 IU
per 6-oz serving
6 ounces of cooked meat is about the size of two decks of cards. An adult should eat at least this much at a meal.
Wild salmon
1702 IU
per 6-oz serving
Farmed salmon 412 Iu
per 6-oz serving1
Canned sardines 250 Iu
per can
Egg yolks
41 IU
per egg
Beef liver
84 IU
per cooked 6-oz serving
How can I cook it? Lomi Lomi salmon or grilled salmon-tomato skewers 1134 IU per serving if you use wild-caught fish; 274 IU per serving if you use farmed fish.
Oysters Kilpatrick 538 IU per recipe; 45 IU per oyster.
Shrimp-stuffed eggplant 129 IU per serving.
1 Source for the difference between wild and farmed salmon here.