MEDI110 Lecture Notes - Lecture 22: Dietary Fiber, Fluid Balance, Thyroid
30 Oct 2018
School
Department
Course
Professor
Document Summary
Have various functions in the body e. g water balance, growth, development, nervous system, cellular process. Major >100mg per day e. g calcium. Excessive intakes can be toxic especially for trace minerals. Some behave like water-soluble vitamins or oil-soluble. Salt sensitive adults are estimated: 25 % for normotensive, 50 % for hypertensive. Osteoporosis (50% women over 70 risk of fracture, 30% men 60 years over) Calcitonin, lowers blood ca levels, excrete in urine and inhibiting bone breakdown by osteoclasts. Mineralisation of bones and teeth, part of every cell, part of phospholipids. Bone mineralisation,protein building, nerve impulse muscle contraction, teeth maintenance, immune system. Myoglobin in muscle cells makes oxygen available for muscle contraction. Animal products such as meat,fish,poultry,eggs more easily absorbed. Ferrous ion (+2) more easily than ferric (+3) iron. Hindered by phytic acid, oxalic acid, high fibre, high calcium polyphenols. Reduces production of red blood cells and oxygen capacity, Genetic disease, over absorption of iron leading to organ failure.
