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Trans fat has been found to act like saturated in raising the blood level of LDL ("bad cholesterol"); but, unlike saturated fat, it also decreases levels of HDL ("good cholesterol"). The net increase in LDL/HDL ratio with trans fat, a widely accepted indicator of risk for coronary artery disease, is approximately double that due to saturated fat.
Saturated fatty acids have perfectly straight chain structure. Unsaturated ones are typically bent, unless they have a trans configuration. In chemistry , particularly in biochemistry , a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated or unsaturated .
A saturated fat is a type of fat in which the fatty acid chains have all single bonds between the carbon atoms. A fat known as a glyceride is made of two kinds of smaller molecules: a short glycerol backbone and fatty acids that each contain a long linear or branched chain of carbon (C) atoms.
Sugar, sodium and saturated fats have similar effects: They may make food taste better for longer, but aren't adding any good nutrition to your diet and may be bad for your heart health. You need ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. Esters of fatty acid or triglycerides This article is about the type of nutrient in food. For fat in animals, see Adipose tissue. For chemistry of fats, see triglyceride. For other uses, see Fat (disambiguation). Idealized representation of a molecule of a typical triglyceride, the main ...
It has long been understood that carbohydrates significantly contribute to blood sugar levels, prompting insulin release, while proteins have a moderate effect, and fats have minimal immediate impact.
A significant proportion of the fatty acids in the body are obtained from the diet, in the form of triglycerides of either animal or plant origin. The fatty acids in the fats obtained from land animals tend to be saturated, whereas the fatty acids in the triglycerides of fish and plants are often polyunsaturated and therefore present as oils.
In cellular metabolism, unsaturated fat molecules yield slightly less energy (i.e., fewer calories) than an equivalent amount of saturated fat. The heats of combustion of saturated, mono-, di-, and tri-unsaturated 18-carbon fatty acid esters have been measured as 2859, 2828, 2794, and 2750 kcal/mol, respectively; or, on a weight basis, 10.75 ...