Of all the nut oils, walnut oil is clearly one of the healthiest. In the olden days, it was used to cure many ailments including stomach and skin problems, tuberculosis (although, admittedly, the jury is out on just how successful that might have been!), hair loss and diabetes.
Today, however, walnut oil is more revered as a healthy source of fat. Walnuts are high in alpha-linoleic acid, an essential fatty acid that is converted to EPA and DHA (long-chain omega-3s) in the body. Furthermore, walnut oil is also a great source of omega-9, which helps maintain artery health, as well as omega-6 (you gotta have some of ‘em), which is important for skin and hair growth as well as maintaining a healthy reproductive system.
The posts involving omega-3s have spurred a lot of discussion and a good number of excellent questions. Thanks to Ed Parsons and company I thought I’d give more time to the topic and see if I can complete the picture a little more. Thank you for your comments and questions.
Can you give us some rules of thumb for getting into the 1:1 ratio ballpark? Should I be trying to hit the ratio for every meal, for each day, or by the week, or even over a longer time period?
Just to review, the hailed 1:1 ratio of omega-6 to omega-3 fatty acids provides your body with the appropriate balance thought to keep inflammation at bay. I would advise making the ratio a priority each day. Targeting the ratio for every meal can get unnecessarily complicated, and longer spans like a week don’t take into account your body’s constant hormonal production, which is influenced by the fatty acids.
Last week’s Definitive Guide to Fats gave us a chance to unpack the essential fatty acids. But we thought they deserved a closer look still.
Just to review, omega-3 and omega-6 are known as “essential” fatty acids because the body can’t produce them itself. So, it’s up to us to incorporate them into our diet. The typical Western diet is rich in omega-6. (Think corn, soy, peanut, safflower, and other oils.) As for the prevalence of omega-3? Not so much. (Think fish, flax, algae, walnuts, and animal products from grass fed livestock.)
Chalk yet another one up for low-carb, high protein diets: A study in the current issue of the American Journal of Clinical Nutrition finds that a vegetable-based, low-carbohydrate diet can reduce the risk of type 2 diabetes in women.
To assess the impact of diet on type 2 diabetes risk, researchers from the Harvard School of Public Health examined the dietary habits of 85,059 women participating in the Nurse’s Health Study. The women were then assigned a score based on their diet, with higher scores going to the women who consumed a diet rich in animal fats and protein and low in carbohydrates and lower scores assigned to women following a low-fat, high-carbohydrate diet.
Whereas cholesterol usually gets the gold for most demonized nutritional substance, fats undoubtedly take the silver. We recently covered the cholesterol conundrum, and this week it’s time to confront the fervor over fat. Thanks for joining us today. Please make yourselves comfortable.
As you know, I’ve always been a friend to many fats. But the fact remains, ladies and gentlemen, that not all fats are created equal.
A few fats, including but not limited to trans fats, deserve every bit of disparagement they get and then some. However, we feel for those other little guys in the group. Many of them are, assuredly, a good lot, and we’d like to put in a good word for them.
Everyone ready? Servers are coming around with crudite platters as we speak. Let’s begin, shall we?
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