Send me Your FREE
Health & Nutrition Updates

Tips on ways to live longer, healthier and happier.
Enter your email below.

Ask Tufts Experts May 2007 Issue

Q: I understand how to identify trans fats as “partially hydrogenated.” But I sometimes see “fully hydrogenated” —for example, on Reduced Fat Jif Peanut Butter. Can you please explain what “fully hydrogenated” means and what, if any, impact it has on our health?

Answer :  To understand the difference between “partially” and “fully hydrogenated” oils, you’ll need a short chemistry lesson—bear with us! In saturated fats, all the positions for hydrogen on the carbon atoms are filled. Monounsaturated fats have one pair of carbon atoms per chain that are connected to each other instead of to hydrogen atoms this carbon-carbon bond is thus “unsaturated”); so oleic acid, a monounsaturated fatty acid, which has 18 carbon atoms per chain, is…

To continue reading this article you must be a paid subscriber.

Subscribe to Tufts Health & Nutrition

Subscribe and receive the next full year of Tufts Health & Nutrition for just $24. And access all of our online content - including years of back issues - free of charge. That's a savings of $12 off the regular rate. It's like getting 4 issues free!

Or subscribe for two years for $40 and save even more!

Get Tufts Health & Nutrition Digital

With 12 months of Tufts Health & Nutrition DIGITAL and get instant access to digital editions of current and past issues that you can download and save in PDF format to your PC, Mac or mobile device. You will also get unlimited access to everything on the site.

Subscriber Log In

Forgot your password? Click Here.

Already subscribe but haven't registered for all the benefits of the website? Click here.