We have all had the unfortunate olfactory experience of opening a bad pack of meat, a spoiled jug of milk or a rotten carton of eggs. Thousands of pounds of food are wasted every year due to spoilage. Additionally, thousands of cases of food poisoning occur every year due to food poisoning caused by bacteria like due to bacteria like E. coli and salmonella, leading to hundreds of serious hospitalizations around the country.
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Not to over-buy; better planning is needed on everyone's behalf when it comes to food. We don't need more preservatives, we need to think smarter and use what we are given in a reasonable time frame. Fresh food isn't meant to last more than a certain while. If you want an extended shelf-life, learn how to can or jar your own food.
The only negative affect it could have would be having your body produce LESS of that chemical.