3. Diet
The foods that you eat also contain vitamin D. Unfortunately, many people following a typical western diet are not getting enough vitamin D in their daily nutrition plan. Some foods that have high amounts of vitamin D include egg yolks, fish oil, fish, liver, dairy, and some fortified grain products.
If you are vegan and do not eat a lot of these foods because of your dietary restrictions, you may be more likely to suffer from low vitamin D. Additionally, those who are lactose intolerant or suffer from a dairy allergy of any kind, may also find that there diet does not contain enough vitamin D. Changing your diet can help in many ways. Foods that are high in vitamin D are also typically high in other vitamins and nutrients your body requires to perform at its optimal levels.