FNN 100 Lecture Notes - Lecture 8: Vitamin D Deficiency, Bone, Homeostasis

• School: Ryerson University
• Department: Nutrition and Food
• Course: FNN 100
• Professor: Barbara Wendland

Document Summary

Fnn module 6 bone building nutrients. Water soluble = vitamin bs and vitamin c. Fat soluble = a, d, e, and k. Minerals = ca po4, mg, k+, na. Trace minerals = iron, zinc, copper, manganese, se iodine, fluorine, chromium. Bioavailability the degree to which or how much of a nutrient is absorbed and therefore available to be used by the body. Age, disease state, nutrients in food, nutrients eaten with the food, transit time in gut, minerals with similar charges (2+) Each nutrient has different factors and rates (100% of na absorbed, 5% of fe) Bodies inherent regulatory mechanisms to regulate absorption can be overridden by high levels taken in supplements. Fat-soluble vitamins require fat to be absorbed and lipoprotein carriers. Vitamin precursors found in food that must be converted to its active form in vivo. Some vitamins are absorbed in inactive provitamin forms that must be converted into active forms.