FNH 250 Lecture Notes - Lecture 11: Peanut Butter, Bone Mineral, Thyroid

• School: UBC
• Department: Food, Nutrition and Health
• Course: FNH 250
• Professor: Gail Hammond

Document Summary

Food sources: copper: water from copper pipes. Animal foods: protein-rich foods liver, organ meats seafood, shellfish. We keep calcium in blood through hormonal actions. We can"t use calcium in blood as a measure for your calcium balance in bones (bone health) therefore, we use dexa. There are parathyroid glands within the thyroid gland. When our blood calcium drops, the parathyroid glands increases synthesis of parathyroid hormone. This helps to activate vitamin d which acts together with parathyroid hormone on the kidneys to retain calcium in blood. They also work at the level of the bone (for utilization). Vitamin is considered as a vitamin and a hormone. Vitamin d acts at the level of intestines. Calcitonin reduces vitamin d activity and therefore calcium intake makes sure blood calcium does not go too high: sites of action, what hormones work to increase/decrease blood calcium. Dexa scan that measures bone density (fat tissue vs lean soft tissue)