4 doctors weighed in:
What is the best natural source apart from sunshine to help keep the vitamin d levels up?
4 doctors weighed in

Dr. Maritza Baez
Family Medicine
1 doctor agrees
In brief: Fortified foods
The flesh of fatty fish (such as salmon, tuna, and mackerel) and fish liver oils are among the best sources.
Small amounts of vitamin d are found in beef liver, cheese, and egg yolks. Some mushrooms provide vitamin d2 in variable amounts. Ready-to-eat breakfast cereals often contain added vitamin d, as do some brands of orange juice, yogurt, margarine and other food products.

In brief: Fortified foods
The flesh of fatty fish (such as salmon, tuna, and mackerel) and fish liver oils are among the best sources.
Small amounts of vitamin d are found in beef liver, cheese, and egg yolks. Some mushrooms provide vitamin d2 in variable amounts. Ready-to-eat breakfast cereals often contain added vitamin d, as do some brands of orange juice, yogurt, margarine and other food products.
Dr. Maritza Baez
Dr. Maritza Baez
Thank
Dr. Susan Wingo
Internal Medicine - Endocrinology
1 doctor agrees
In brief: Fish
Fatty fishes (tuna, mackerel, catfish, salmon) are one source.
Eggs have some; beef liver has a little. Cod liver oil has a lot. After that, you're looking at fortified dairy products or cereals that have vitamin d added to them, or vitamin d supplements or multi-vitamins.

In brief: Fish
Fatty fishes (tuna, mackerel, catfish, salmon) are one source.
Eggs have some; beef liver has a little. Cod liver oil has a lot. After that, you're looking at fortified dairy products or cereals that have vitamin d added to them, or vitamin d supplements or multi-vitamins.
Dr. Susan Wingo
Dr. Susan Wingo
Thank
2 comments
Dr. Robert Lang
The Endocrine Society recommends 1500-2000 IU daily.
Dr. Robert Lang
It takes about 20 oz. of salmon or 36 oz of sardines daily to get 2000 IU. Take a supplement.
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