Nutrition & Dieting/transfats


I started watching my transfats in last few years and feel that a lot of companies have become wise to people like myself and now have most items claiming to be transfat free, and recently I came across Subway Subs claiming their transfats are naturally occuring.

Is this true for Tuna?  I understand in cheese and some meats it is naturally occurring, but can you please explain this process for meats other than cows.  And, isn't the percentage of natural transfats usually very very low?  Is there a range or how can I tell they are trying to skirt the issue?

Hi Tania,
Yes, animal products have some naturally occurring trans fats. I don't think there are cases where transfats are added to meat/fish/poultry products.

It's often baked goods that make the additional trans fats, and then they must be listed on the label. Unfortunately if there is a small amount (like less than half a gram) they do sometimes get away with saying "none".
Usually the most you'll see is 1-2 grams, so they are in tiny amounts.
If a product has such a tiny amount they can claim zero, there really isn't a way you can find out about it. I would look at the ingredients for code words like "hydrogenated oils" which are liquid oils made more solid for texture (which is what trans fats are).

Nutrition & Dieting

All Answers

Answers by Expert:

Ask Experts


Laurie Beebe, MS, RD, LD


As a registered dietitian (RD)I am fully qualified to accurately answer questions regarding weight loss, including those from people with health conditions requiring dietary restrictions (diabetes, high blood pressure, high cholesterol, etc) who want to lose weight, or who have been advised to do so by their physician.


I have been a registered dietitian for over 30 years and have a certificate in Adult Weight Management through the commission on dietetic registration at Level 1 and Level 2. I am also trained in coaching through Coach U and currently work as a diet coach to help people lose weight the healthy way, through gradual habit changes.

Academy of Nutrition and Dietetics (AND), Weight Management Dietetic Practice Group, Nutrition Entreprenuers, St.Louis International Coach Federation, Toastmasters

Publications,,,, Today's Dietitian

Bachelor of Health Science from the University of Florida, 1983; Master of Science in Clinical Nutrition from Case Western Reserve University 1985; Certificate in Adult Weight Management 2006; CoachU core essentials grad 2007; Level 2 certificate in Adult Weight Management 2010.

©2017 All rights reserved.