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How do the different kinds of dietary fat affect aging?

Dr. Michael Roizen, MD
Internal Medicine
There are four major types of fat: saturated, polyunsaturated, monounsaturated, and trans fat. The first three occur naturally. Trans fat is an artificial version of saturated fat. Although all four types of fat have the same number of calories per serving (120 per tablespoon or 9 per gram), each type can affect your body differently. Saturated and trans fats cause aging of the arteries and the immune system. Polyunsaturated fats do not seem to have any substantial aging effects per se. Monounsaturated fats appear to actually make you younger, helping to boost the levels of high-density lipoprotein (HDL) or "healthy" cholesterol in your blood.
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The RealAge Makeover: Take Years off Your Looks and Add Them to Your Life

Why not live at 60 feeling like you did at 35?Thousands of Americans are younger today than they were five years ago. How is that possible? By following the specific recommendations that reverse...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.