Promote Heart Health
Before reviewing special health areas in which avocados truly shine in terms of their health benefits, it’s worth remembering the big picture. That’s exactly what Victor Fulgoni and his fellow researchers at Nutrition Impact, LLC did when they reviewed data from the federal government’s National Health and Nutrition Examination Study (NHANES 2001-2006) and the dietary intake of 14,484 U.S. adults. Amazingly, only 273 adults participating in this study reported consumption of avocado within the last 24 hours. Amongst the 273 participants who reported recent consumption of avocado, however, nutrient intake was found to be significant higher than other participants for several vitamins (vitamin E and vitamin K), several minerals (potassium and magnesium), and at least one desirable macronutrient (total dietary fiber). Avocado consumers were also determined to be lower in weight and lower in body mass index than non-consumers. Total fat intake, total monounsaturated fat intake, and total polyunsaturated fat intake was higher in consumers of avocado, even though their overall calorie intake was not significantly different from non-consumers of avocado. This nationwide comparison of avocado consumers and non-consumers doesn’t prove that avocado consumers get health advantages from avocado. Nor does it prove that avocado consumption makes us lower in weight. But it does point us in the general direction of viewing avocado as a health supportive food that may give us a “leg up” in terms of health and nourishment.
Wide-Ranging Anti-Inflammatory Benefits
The ability of avocado to help prevent unwanted inflammation is absolutely unquestionable in the world of health research. The term “anti-inflammatory” is a term that truly applies to this delicious food. Avocado’s anti-inflammatory nutrients fall into five basic categories:
- phytosterols, including beta-sitosterol, stigmasterol, and campesterol
- carotenoid antioxidants, including lutein, neoxanthin, neochrome, chrysanthemaxanthin, beta-cryptoxanthin, zeaxanthin, violaxanthin , beta-carotene and alpha-carotene
- other (non-carotenoid) antioxidants, including the flavonoids epicatechin and epigallocatechin 3-0-gallate, vitamins C and E, and the minerals manganese, selenium, and zinc
- omega-3 fatty acids, in the form of alpha-linolenic acid (approximately 160 milligrams per cup of sliced avocado)
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What might the avocado offer in the way of health benefits
polyhydroxylated fatty alcohols (PSA)s
Arthritis—including both osteoarthritis and rheumatoi arthritis—are health problems that have received special research attention with respect to dietary intake of avocado. All categories of anti-inflammatory nutrients listed above are likely to be involved in avocado’s ability to help prevent osteoarthritis and rheumatoid arthritis. One especially interesting prevention mechanism, however, appear to involve avocado’s phytosterols (stigmasterol, campesterol, and beta-sitosterol) and the prevention of too much pro-inflammatory PGE2 (prostaglandin E2) synthesis by the connective tissue.
Optimized Absorption of Carotenoids
No single category of nutrients in avocado is more impressive than carotenoids. Here’s a list that
Halibut with Avocado Salsa
summarizes key carotenoid antioxidants provided by avocado:
- alpha-carotene
- beta-carotene
- beta-cryptoxanthin
- chrysanthemaxanthin
- lutein
- neochrome
- neoxanthin
- violaxanthin
- zeaxanthin
Optimal absorption of these fat-soluble phytonutrients requires just the right amount and combination of dietary fats—and that is exactly the combination that is provided by avocado! Included within avocado are generous amounts of oleic acid, a monounsaturated fatty acid that makes it easier for the digestive tract to form transport molecules (chylomicrons) that can carry carotenoids up into the body. This great match between avocado’s fat content and its carotenoids also extends to the relationship between avocado and other foods. Consider, for example, a simple salad composed of romaine lettuce, spinach, and carrots. This simple salad is rich in carotenoids, and when we eat it, we definitely get important carotenoid benefits.
But recent research has shown that if one cup of avocado (150 grams) is added to this salad, absorption of carotenoids will be increased by 200-400%! This improvement in carotenoid absorption has also been shown in the case of salsa made with and without avocado.