Dear Mark: Calcium Supplements, Goitrogenic Foods, High-MUFA Seed Oils, and Jogging

September 5, 2011

Today’s edition of “Dear Mark” covers a variety of topics. We’ve got calcium supplementation – does it make sense and is it safe? Then, I briefly discuss cruciferous vegetables, which are said to have negative effects on thyroid health. Some studies support this, but are they an issue for healthy people? I also look at seed oils high in monounsaturated fats (yes, they exist) and low in the much-maligned polyunsaturated fats, and I discuss their suitability in a Primal eating plan. And finally, a reader asks if jogging is ever okay and, if so, how to do it the right way.
With that out of the way, let’s get to the questions.

Hi Mark,
What do you think about calcium supplements for woman?
Sincerely,
Susan

Not a whole lot. I covered this a couple years ago, but I’ll expand today.
Most of the literature has found isolated calcium supplementation to be ineffective at its purported job (strengthening bones […]

Original post by Mark Sisson

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