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?”
Think the debate over the national debt was contentious? That’s nothing compared to the war being waged in scientific circles about how much sodium it’s safe to eat. As researchers duke it out in the pages of medical journals, poor consumers are caught in a cross-fire of contradictory recommendations. In this week’s podcast, I tell you what you need to know to stay out of trouble. Read or listen to it here.
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 couple of readers have written this week with variations on this question.
Gwen notes that many weight loss plans allow for unlimited amounts of vegetables and wonders whether this rule is really a good one or whether some restrictions make sense. Jim says he’s not dieting but he’s gradually increased his vegetable intake to the point that he’s now eating up to five pounds of vegetables a day. He wonders whether that may be excessive and whether he should be concerned that almost all of the calories in vegetables come from (natural) sugars.
Obviously, you can overdo just about anything…even water. Drink several gallons of water in a short period of time and and you can put yourself into a hyponatremic coma. (Don’t try this at home.)
But assuming you’re not actually trying to hurt yourself, how easy would it be to get yourself in trouble by eating too many vegetables? All in all, not that easy. In most vegetables, the ratio of water and fiber to calories and sugar is high enough to keep you from from over-doing it. But as you appear to be craving some guidelines, here are a few:
Q. In a recent interview, you mentioned cutting back on added sugar as one of the most important things you can do to improve your diet. I noticed you didn’t mention the importance of limiting sodium. Do you think the concerns over sodium are over-blown?
A. In a word, yes. In the recently released 2010 Dietary Guide for Americans, they really came down hard on salt, stressing the need for all Americans to reduce their sodium intake. Given all the things about the typical American diet that could use fixing, I thought it was a little odd how much emphasis they put on this. (Obviously, the salt lobby was asleep at the switch during the hearings…)
The rationale for universal sodium restriction rests a string of loosely related statistics: