Canola oil and olive oil,both high in monounsaturated fats, do a better job of enabling carotenoid absorption than polyunsaturated fats such as corn oil and soybean oil.
In a human trial, researchers fed subjects salads topped off with saturated, monounsaturated and polyunsaturated fat-based dressings and tested their blood for absorption of fat-soluble carotenoids – compounds such as lutein, lycopene, beta-carotene and zeaxanthin. Those carotenoids are associated with reduced risk of several chronic and degenerative diseases such as cancer, cardiovascular disease and macular degeneration.
The study, published early online in the journal Molecular Nutrition & Food Research, found that monounsaturated fat-rich dressings required the least amount of fat to get the most carotenoid absorption, while saturated fat and polyunsaturated fat dressings required higher amounts of fat to get the same benefit.
So to absorb the beneficial compounds out of vegetables eat them with small amounts of olive oil or canola oil.
Olive oil and canola oil are effective at lower doses.
Monounsaturated fat-rich dressings, such as canola and olive oil-based dressings, promoted the equivalent carotenoid absorption at 3 grams of fat as it did 20 grams, suggesting that this lipid source may be a good choice for those craving lower fat options but still wanting to optimize absorption of health-promoting carotenoids from fresh vegetables.
|Share |||Randall Parker, 2012 June 19 10:26 PM Aging Diet Studies|