It’s all in the yolk.

A buzz in health news headlines of the past few days has been this recent study, published in the April issue of the American Journal of Clinical Nutrition, which found that eating more than 7 eggs per week causes increased risk of heart disease. This was a 20 year long study done on over 20 000 “Harvard-educated male physicians” who like to eat more than one egg a day. There are flaws in the study, and I am not about to do a critical review on it, but the authors did point out an important thing, which is that eating more saturated and trans fats does worse for your blood cholesterol than does actually eating more cholesterol. But obviously, eating more than 7 eggs a week does seem a bit much.

Another recent buzz may get a lot of people confused (or rolling their eyes at scientific research) – which is that eating more eggs can reduce the risk of breast cancer by 24 percent. The study was actually online before print in January and will be published in the June issue of the FASEB Journal. It is supported by previous findings that eating an egg a day or at least 6 eggs a week leads to a significant reduced risk of breast cancer. This is thanks to choline, present only in egg yolks (which also happens to be the cholesterol culprit. Ah, where is the happy medium?).

The good news is, if you want your choline and are worried about cholesterol, or are vegan, whatever, choline can also be found in coffee, skim milk, cauliflower, liver, and wheat germ (egg yolks provide about 25% of the daily supply).

And depending on whether you are an egg-lover or egg-hater, you can use either of these studies to back you up when you are in an argument. This is why I love being a research scientist.


One Response

  1. yeah, i’ve just about given up on these studies. one day meat is good for you, the next day it’ll give you colon cancer. but then it’s good for you again! carbs are good, no wait.. they’re bad… oh maybe not.

    i’ve decided just to eat what i want to eat, in moderation, with plenty of exercise. something is eventually going to kill me, i might as well enjoy life and food. it’d be awesome if i went out because the treadmill i was on went haywire, heh.

    oh, and the little smiley face on your site is freaking me out!


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