Review the available Assessment Questionnaires for the symptoms of Spinal Cord Tumor: 1  Pain -- Assessment Questionnaire. 2  Paresthesias -- Assessment Questionnaire. 3  Numbness -- Assessment Questionnaire. 4  Back pain -- Assessment Questionnaire.
Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement. It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis.ood. Very few foods in nature contain vitamin D. The flesh of fatty fish (such as salmon, tuna, and mackerel) and fish liver oils are among the best sources [ 1, 11 ]. Small amounts of vitamin D are found in beef liver, cheese, and egg yolks.
Vitamin D is unique among vitamins; you can synthesize it in your skin as well as absorb it from foods or supplements. To complicate things further, vitamin D also comes in two forms: D2 and D3. Your skin synthesizes vitamin D3, also called cholecalciferol; you can also take D3 in supplement form.hoosing D2 or D3. Getting either vitamin D2 and D3 from supplements, sunlight exposure or foods will raise your 25(OH)D level. Some researchers believe that your body absorbs D3 more efficiently.