Their best advice to do that is to shop the perimeter of the grocery store. Replace sugary snacks with fruits and nuts, and switch to whole grain cereal and bread.

We also reached out to all the companies whose food we mentioned earlier in this piece. We specifically asked them if they're aware of the potential health risks associated with artificial dyes, and whether they've discussed removing them.

The Coca-Cola Company, which makes Fanta Orange, sent us this statement:

"All the ingredients we use in our products are safe, are permitted by regulatory authorities in the countries in which they're sold and are properly labeled. We would not use any ingredient if there was a credible basis to confirm that it wasn't safe."

Nestle, which makes Wonka Sweet Tarts, sent us this statement:

"At Nestlé USA food safety is our highest priority. All of our confectionery ingredients meet stringent FDA requirements and are safe for consumption. We continually look for ways to improve products with the ultimate goal of meeting consumers' needs. However, food regulations vary in different countries, as do the brands available. At present, we continue to work toward the removal of artificial colors and flavors in our U.S. candy products."

Kraft Foods, which makes Crystal Light, sent us this statement:

"The safety and quality of our products is our highest priority. That is why we only use ingredients that are approved and deemed safe for use by the Food and Drug Administration."

The other companies we reached out to, and whose products were featured in our story -- Kellogg's, Hershey's, Pinnacle Foods (which makes Duncan Hines products), and Pepsi (which makes Mountain Dew) -- did not respond, and did not answer our questions about whether they're aware of the potential dangers of these artificial dyes.