NUTRITION FACTS has the best videos we’ve ever seen on health topics, including heart disease and cancer. Today we learned that while pesticides are found almost universally in the blood of people eating conventional foods from grocery stores, it’s not clear whether this causes health problems. Surveys are difficult, because there are so many variables. Fruit flies are easier to study, for example, but not surprisingly, insects eating insecticides fare poorly. We also learned the most effective way to remove surface pesticides from fruit and veggies: put a little salt in the water when you wash them.

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