disorders
Kidney disease
Liver disease
Many older adults have low vitamin D without realizing it.
Sources of Vitamin D3
Sunlight
The skin naturally produces vitamin D after exposure to sunlight.
However, production decreases with age and varies depending on:
Geographic location
Season
Skin pigmentation
Sunscreen use
Time spent outdoors
Foods Rich in Vitamin D
Dietary sources include:
Salmon
Sardines
Mackerel
Trout
Egg yolks
Fortified milk
Fortified plant-based beverages
Fortified cereals
Because relatively few foods naturally contain vitamin D, many people obtain only small amounts through diet alone.
Supplements
Vitamin D3
