12.07.2015 Views

Food and nutrition.pdf

Food and nutrition.pdf

Food and nutrition.pdf

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Nutrition Disorder Related to <strong>Food</strong> 157also facilitate compliance with a low-fat diet. Scientists first suspected aconnection between soy <strong>and</strong> lower cholesterol levels after observing thatpeople in Asian countries where diets contain much more soy than in theUnited States have significanUy lower levels of heart disease thanAmericans. Experts believe natural soy compounds called isoflavones actlike human hormones that regulate cholesterol levels. A 1998 studyconcluded that regular consumption of soy isoflavones may reduce totalcholesterol levels by up to 10 percent.A minimum of 25 grams of soy protein must be consumed daily inorder to reap optimal cholesterol-lowering benefits. Good sources of soyprotein include soy milk, tempeh, tofu, <strong>and</strong> textured soy protein, a mainingredient in many meat substitutes.The amount of cholesterol synthesized <strong>and</strong> metabolized by the bodyis far greater than the amount usually consumed in the diet. It must alsobe noted that in healthy people little correlation has been found betweenthe intake of cholesterol <strong>and</strong> blood cholesterol levels. Yet the level ofcholesterol in the blood is increased with high intakes of dietary saturatedfat <strong>and</strong> can be lowered by increasing the intake of linoleic acid <strong>and</strong> fibre,which leads to a reduction of cholesterol absorption from the intestine<strong>and</strong> an increased faecal excretion of dietary cholesterol.There is some evidence indicating that other nutrients can lower bloodcholesterol levels. Choline emulsifies cholesterol thus helps to control abuild up. Inositol metabolizes fats <strong>and</strong> cholesterol. Vanadium inhibits theformation of cholesterol in the blood vessels <strong>and</strong> aids in preventing heartattacks. Zinc also helps to decrease cholesterol levels.If you are on a cholesterol reducing drug, you will suffer a decreasein the absorption of Vitamin A, thus needing to increase the amountavailable in your diet.Psyllium is an especially attractive hybrid intervention in that it iswell tolerated, lowers LDL-cholesterol by 10% to 20%, has no adverseeffects on triglycerides, high-density-lipoprotein (HDL) cholesterol, orserum glucose, <strong>and</strong> is readily available <strong>and</strong> {airly inexpensive. It has along history of use without any evidence of10ng-term adverse effects.Onions, Garlic, <strong>and</strong> Ginger are also recommended for their ability to helplower cholesterol levels.It is estimated that oat bran supplementation (90 gm per day) was amuch more cost-effective method of lowering serum cholesterol than eithercholestyramine or colestipol.CoughingCough is an action that clears an irritated area of the lungs or throat.It is a common symptom of a number of disorders, such as the common

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!