Dr. Weil's Food Pyramid

The Environmental Working Group (www.ewg.org) is a nonprofit organization that advocates in Washington D.C., for policies that protect global and individual health. Among the many valuable services they provide is a Shoppers' Guide to Pesticides in Produce. It is based on the results of nearly 43,000 pesticide tests performed on produce and collected by federal agencies between 2000 and 2004. Nearly all of the data used took into account how people typically wash and prepare produce - for example, apples were washed and bananas peeled before testing.

Of the 43 different fruit and vegetable categories tested, these had the highest pesticide load, making them the most important to buy organic versions - or to grow organically yourself:

• Peaches
• Apples
• Sweet bell peppers
• Celery
• Nectarines
• Strawberries
• Cherries
• Lettuce
• Grapes (imported)
• Pears
• Spinach
• Potatoes

Why should you care about pesticides? The EWG points out that there is a growing consensus in the scientific community that small doses of pesticides and other chemicals can have adverse effects on health, especially during vulnerable periods such as fetal development and childhood.

A few other notes from the EWG: Nectarines had the highest percentage of samples that tested positive for pesticides (97.3 percent) followed by peaches (96.6 percent) and apples (93.6 percent). Peaches had the highest likelihood for multiple pesticides on a single sample: 86.6 percent had two or more pesticide residues.

Also keep in mind that maintaining your family's health is not the only reason to choose organic food. Pesticide and herbicide use contaminates groundwater, ruins soil structures and promotes erosion, and may be a contributor to "colony collapse disorder," the sudden and mysterious die-off of pollinating honeybees that threatens the American food supply. Buying or growing organic food is good for the health of the planet.

Learn more about the list of 12 foods that you don't have to buy organic.