Vitamin D sources
Vitamin D sources. There are three natural sources of this important vitamin:
- natural sunlight
- foods fortified with this vitamin eg. dairy products, many cereals
- oily fish.
people become more careful about sun exposure and its possible causing
of skin cancers, many use sunscreens with SPF 15 or higher. These
inhibit the production of Vitamin D.Some medical personnel advise 20 min
of sun exposure a day without sunscreen so as to overcome this
problem. You need to get the advice of your medical provideron this
topic - especially if you have any history of skin cancers.
northern latitudes (eg. North of Boston, USA) there is not enough
radiant light especially in winter and so natural sunlight is not a real
source of Vitamin D and supplements may be recommended.
Some people have a genetic difficulty in converting sunlight into
Vitamin D (These are often the folks whose parents and grandparents had
Osteoporosis and broken bones in their mature years. Special note: the conversion of
sunlight to Vitamin D depends on skin pigmentation. Lighter skin is
better able to convert sunlight into vitamin D.
age 70. There are changes in skin that occur around age 70 that make it
more difficulty for the skin to use sunlight as one of its Vitamin D
Sources. This is a normal part of aging but you need to take this into
account when estimating your daily exposure to this essential vitamin.
Many persons older than 70 need supplements or if they have been using
supplements they need to increase the amount.
- Obesity can interfere with the conversion of sunlight into this Vitamin.
Vitamin D Sources from food
- Food manufactures of dairy products and many cereals fortify their
products with this vitamin. Read the label and take these sources into
account when estimatingyour daily intake.
- 2. Natural food that are good Vitamin D Sources: Fish: herring, Atlantic, raw. A 200 calorie serving gives 2061IU of the vitamin; Catfish, wild 200 calories serving: Viatamin D 1053IU; Eastern wild Oyster 941IU; Salmon, sockeye, canned, drained solids with bone - 200 calories 920IU; pink salmon with bones and liquids 898IU, Steelhead trout, boiled, canned (Alaska Native) 760IU per 200 calorie serving , Halibut: Greenland, raw V: 645IU Vitasoy USA, Nasoya Lite Firm Tofu: 581IU , Pickled Atlantic herring 519IU Sardine: Pacific, canned in tomato sauce, drained solids with bone 516IU, Mackerel: Atlantic, raw 351IU: SILK soymilk Light Plain 338IU : Steel head trout, dried, 329IU : Mackerel, jack, canned, drained solids 323IU : Crustaceans, shrimp, mixed species, raw 287IU : Sardine, Atlantic, canned in oil, drained solids with bone 262IU: Tuna fish, light, canned in oil, drained solids 238IU : Fish, flatfish ( eg. flounder, sole),: 132IU per 200 calorie serving Note I am indebted to Nutrition data.com for these Vitamin D sources and numbers.
You may want to take a Vitamin D supplement. If so, you will find many, many brands at
Amazon Vitamin D supplments
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