12 Foods You Should Buy Organic

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Celery

Also high in pesticides is celery. This crunchy green vegetable is high in vitamins K and C, and is super-low in calories. Because we eat the entire stalk, celery must be sprayed repeatedly to keep to pests away. "Nobody likes to find a caterpillar-damaged stalk in their celery bunch," says Stuart Reitz, PhD, a research entomologist with the USDA. To really reap the health benefits of celery opt for organic varieties from your local grocery store or farmers market.