Tuesday, June 09, 2009
Healthy Fats in Nuts
The fat contained in nuts and seeds is almost exclusively unsaturated, with a good mix of both monounsaturated and polyunsaturated fats. Nuts and seeds typically feature very limited amounts of saturated fat, about 5-15% or less of their total fat content. The proper balance between these types of fats is important, and many people do not get enough of certain types, especially the polyunsaturated omega-3s. Many nuts and seeds-notably walnuts, flaxseeds, hemp seeds, and chia seeds-are rich sources of a type of omega-3 fat called alpha-linolenic acid (ALA), which belongs to the same family of omega-3 fats as the heart-healthy fats-EPA and DHA-you may have heard about in cold-water fish.
The omega-3 fatty acids found in nuts and seeds may help prevent heart disease and repeat heart attacks in several ways. Omega-3 fatty acids, including ALA, EPA, and DHA are protective fats that have been found to:
- Lower blood cholesterol and triglyceride levels (when elevated, these are both risk factors for heart disease)
- Decrease platelet aggregation, which, when excessive, can cause "sticky" blood that may form artery-blocking blood clots
- Reduce the formation of artery-clogging atherosclerotic plaque
- Reduce inflammation of the blood vessels and therefore improve blood flow
- And, lower blood pressure.
Labels: ALA, chia seeds, DHA, EPA, healthy diet, healthy fats, hemp seeds, Nuts, Omega-3s, seeds
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