Hellmann's has been implying in their advertising that their mayo is all natural. I went to their website and couldn't find any information about what they put in their mayo. So I emailed them: Does Hellmanns have any GMO ingredients? Does it have artificial additives? Does it have MSG or other glutamate flavor enhancers? Here is their reply: It is our policy that any of our products which may contain ingredients created through the use of biotechnology, be proven that their safety to consumers and the environment is fully established. Biotechnology has the potential to help meet the demands of people for everyday products that are more environmentally friendly; that involve less processing; that are more functional; that taste better; that last longer; that provide added nutritional benefits; that are customized to an individual's lifestyle; and that are currently available. Biotechnology is important to Unilever (Lipton etc,) because it helps our mission as one of the world's largest consumer goods companies to continue to deliver innovative products that our consumers tell us they want. Products resulting from biotechnology have been used successfully and safely for many years - for example: in the pharmaceutical industry. We are also committed to the provision of the best possible information to the consumer. The FDA has had a sound labeling system in place for biotech foods since 1992. Under that system, biotech foods must be labeled if they are found to be significantly different from their conventional counterparts, or if they contain allergens. This is the same basic program that safeguards the conventional food supply in the United States. Since there is no difference between plants or foods derived from biotechnology and those not derived, there is no clear reason to label either respectively. All of our products are labeled in accordance with the rules and regulations of the federal government. It is our responsibility at Unilever - and a responsibility we take very seriously - to make certain all of our ingredients are safe. We believe biotechnology is already significant and that its development will continue to bring major benefits to society as a whole. Thank you for your interest. Your friends at Hellmann's I will never buy any of their products again. My list of "safe" brands keeps getting smaller and smaller.