Q. Is there an optimal ratio of polyunsaturated, monounsaturated, and saturated fats that you’d recommend for optimal health?
A. Interesting question, and any answer I give will be controversial, but I certainly don’t mind getting the conversation started!
Here’s how the typical American diet (which, one could argue, is clearly not optimal) breaks down, with fat taking up 34% of total calories. Continue reading “Is There an Optimal Ratio of PUFAs, MUFAs, and Saturated Fats?”
This is crazy. A new study evaluating the link between salt intake and heart problems finds that people with low sodium intake also have an increased risk of cardiovascular issues. But the “low” sodium intake that was linked to increased risk was between 2,000 and 3,000mg per day…in other words, substantially higher than the American Heart Association’s recommended maximum intake of 1500mg. The risk declined slightly at higher intakes and then rose again when sodium intake got up around 8,000mg per day.
Study details: Too little salt may also increase risk of heart problems.
To me, this somewhat ridiculous finding confirms what I’ve long suspected: Continue reading “Low sodium intake linked to heart problems?”
That pain in your neck? Another case of nutrition whiplash, I’m afraid. Earlier this year, the USDA’s new Dietary Guidelines for Americans made the need to reduce sodium intake one of its primary messages.
Then, just last week, a new Cochrane Review concluded that “cutting down on the amount of salt has no clear benefits in terms of likelihood of dying or experiencing cardiovascular disease.” Continue reading “Forget Salt. Focus on Potassium.”
A recent study in the American Journal of Clinical Nutrition reports that a higher intake of omega-3 fatty acids from fish does not appear to reduce the risk for depression. It’s the latest disappointment in a slew of recent studies finding that fish oil failed to help prevent or slow Alzheimers, atherosclerosis, atrial fibrulation, or kidney disease.
In a way, however, the part of this latest study that didn’t make the news is far more interesting than the headlines would suggest. Although a higher intake of fish oils did not ward off depression, a higher ratio of omega-3 to omega-6 in the diet did. Now that’s newsworthy.
In fact, it supports an argument I’ve been putting forth for some time: In order to get the benefits of omega-3 fats, we’d be better off cutting back on vegetable oils and other sources of omega-6 than popping fish oil capsules like bunch of deranged seals.
For a more detailed explanation of why this is the case (and how to go about it), please read or listen to my podcast: Fish Oils and Omega-3s.
If you have been diagnosed with high cholesterol, your doctor has probably recommended that you make dietary changes, such as reducing the amount of fat and cholesterol you eat. The problem is that this approach doesn’t seem to work for everyone. For some people, cholesterol levels remain high despite their best efforts on a cholesterol-lowering regime. When diet alone doesn’t work, cholesterol-lowering drugs are usually the next step.
But there may be another solution. A recent study has shed some light on why some people respond to a cholesterol-lowering diet and some do not. Researchers at Penn State discovered that people with high levels of inflammation are less likely to be successful with a cholesterol-lowering diet. Continue reading “Why Cholesterol-Reducing Diets Sometimes Fail”