Is Stevia Safe?

A. This year, a few noncaloric sweeteners made from an extract of the Stevia rebaudiana plant arrived on grocery-store shelves. The stevia plant has a long history of use as a sweetener in South America. These new sweeteners—sold under brand names like Truvia and PureVia—include a highly purified extract of stevia called Rebaudioside A (a.k.a. Rebiana or Reb A). Reb A is 200 times sweeter than sugar and does not raise blood sugar.

Until December 2008, stevia and its derivatives could be sold in the U.S. only as dietary supplements, due to safety concerns. In the 1980s, animal studies linked stevia with adverse effects on fertility and reproductive development and possible genetic mutations. But in 2008, the makers of Truvia and PureVia submitted research to the Food and Drug Administration regarding Reb A’s safety and petitioned for it to become a generally regarded as safe (GRAS) ingredient.

The FDA affirmed the GRAS status, but did not change the previous ruling on stevia. “Reb A is different than whole-leaf stevia or [other] stevia extracts, which can only be sold as dietary supplements,” says FDA spokesperson Michael Herndon. “Nobody has provided the FDA with evidence that whole-leaf stevia is safe.”

The Center for Science in the Public Interest (CSPI), a consumer advocacy group, believes that the Reb A’s GRAS status was granted prematurely. “In the past, FDA protocol required repeated testing in two separate animal species prior to approval, but in this case it didn’t,” says David Schardt, nutrition expert with CSPI. “We are not warning people to avoid Reb A, but the public should be aware that the FDA did not follow all the usual safeguards.”

Bottom Line: The FDA considers Reb A a safe sugar substitute, but has not approved other forms of stevia. If you want to use stevia, we suggest sticking with Reb A (look for it on the ingredient label).

Download a Free Cookbook with Our Best Healthy Dessert Recipes!


Pure Stevia powder (Reb A) works for me. Just Stevia, not in combination with anything else.


06/13/2015 - 5:26pm

I just learned that my body cannot break down Stevia and it caused a HUGE crazy rash on my legs that itches beyond tolerance :(


06/01/2015 - 1:45pm

I simply do not like Stevia. It has a strange flavor, not exactly sweet. I believe that the body knows if something is good for you or not (besides reading the label), and I believe that my body is telling me not to use Stevia. I purchased a very large box of Stevia and am now struggling with whether I should give it away, or toss it. Splenda (which may not be safe either), has a much better flavor.


05/10/2015 - 10:38am

Personally I think more studies need to be done on Stevia extracts; the FDA has done numerous studies on other low or no cal sweeteners. Labeling Stevia as a natural sweetener is not entirely true, it has been modified to extract the bitter aftertaste. Until now it has been labelled as a GRAS product and as a result has not been tested by the FDA. I am proceeding with caution.


05/03/2015 - 9:29pm

Have to laugh at some of the comments on here. I really worry about the lay person's understanding of 'harm'. The article suggests stevia was demonstrated to be terms of affecting fertility and genetic mutation. The comments from some are "it's a natural product" and "I've used it for years with no problems", which are so absurdly ridiculous it terrifying. Firstly, a scientific study compares a population of people and determines whether they is a high enough statistical significance to link cause to effect. Often that shows that a small percentage of people which have taken the 'variable' (in this case stevia) have had a negative outcome. Of course not 100% experience it otherwise it would be so completely obvious that you probably wouldn't have needed the study in the first place because a public health alert would've been raised. Secondly, "a natural product" is nonsense....most medications are made from "natural products", they are synthetic in that they combine a number of elements in was not found naturally, but each component is natural all the same. Vitamins are natural products.....but too much can be harmful. Finally, I've taken it for years without exactly does a genetic mutation make you feel? How would you know?
To surmise the message in this article, Stevia is not proven to be safe and in some may have the potential to cause harm. In the products the FDA have approved, they did not follow robust testing methods and as such should be treated with caution.


04/25/2015 - 4:18am

i bought the stevia drops from whole foods. says use 4 drops per serving but it did not sweeten my drinkmimused 16 drops and it was medium sweet am i the only one feeling this way ibreturned the proiduct


04/24/2015 - 8:33pm

i never try stevia witch is the better on taste ,?,liquid form or what?


03/31/2015 - 12:20pm

I don't suffer with upset tummies very often but I too bought the Tesco 'Healthy Living' range mint humbugs and within an hour or so was feeling bloated, nauseous and had an upset tummy. Admittedly, I did eat 2 x 3 sweets over an hour but I certainly never expected to feel so crappy. Definitely won't be buying them again!


03/19/2015 - 9:29am

@anonymous. Gluten isn't bad for you. (Unless you're allergic) Just sayin.


03/08/2015 - 6:58pm

I found this site after opening up a Yogi tea and finding that now one of the major ingredients is Stevia leaf. it was NOT labeled on the outside of the box. I have allergies triggers, most I can avoid by not consuming or inhaling them. Ie rag weed, dandelions..etc etc are fine until I ingest or INHALE,then its on. Respiratory distress, diarrhea. anxiety and panic attacks. NO THANK YOU!

So look closely at your favorite products, they're sneaking it into everything. Just like caramageen.
I guess the upside is, I will be eating even LESS processed foods like vegan ice cream. I'm loosing a product a month at this rate.

I also called Yogi teas and left a msg to have them call me about the lack of ingredients listing on their packaging. at $5.00 a box, you want to know what you are paying for.

Use your noggin and do the homework.


02/23/2015 - 2:38pm

Get a full year of EatingWell magazine.
World Wide Web Health Award Winner Web Award Winner World Wide Web Health Award Winner Interactive Media Award Winner