The EWG has released the new 2014 Dirty Dozen & Clean 15 Fruits and Vegetable List. (Click here for the list.)

Produce is expensive. Period. And I find this handy guide/list helps you know where to invest in organic and where it is okay to buy conventional produce.

The produce items on the Dirty Dozen tend to have the highest level of pesticide residue (regardless of the produce being washed or peeled). In a nutshell, these items are the ones you should focus on buying “organic”.

The items on the Clean 15 list have the least amount of pesticide residue, and while you can choose to purchase organic, it is considered safe to buy conventional.

• Apples
• Strawberries
• Grapes
• Celery
• Peaches
• Spinach
• Sweet Bell Peppers
• Nectarines (imported)
• Cucumbers
• Cherry Tomatoes
• Snap Peas (imported)
• Potatoes

Other items to purchase organic as often as possible include hot peppers and kale and collared greens.

• Avocados
• Sweet Corn
• Pineapple
• Cabbage
• Sweet Peas (Frozen)
• Onions
• Asparagus
• Mangoes
• Papayas
• Kiwi
• Eggplant
• Grapefruit
• Cantaloupe
• Cauliflower
• Sweet Potatoes

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Food dyes are one of the most widely used and dangerous additives. While the European Union has recently placed regulations on labeling food dyes to inform consumers of the health risks, the United States has no such requirement.

Here are some of the most common food dyes used today, according to the Food Freedom Network:

• Blue #1 (Brilliant Blue)An unpublished study suggested the possibility that Blue 1 caused kidney tumors in mice. What it’s in: Baked goods, beverages, desert powders, candies, cereal, drugs, and other products.

• Blue #2 (Indigo Carmine)Causes a statistically significant incidence of tumors, particularly brain gliomas, in male rats. What it’s in: Colored beverages, candies, pet food, & other food and drugs.

• Citrus Red #2 It’s toxic to rodents at modest levels and caused tumors of the urinary bladder and possibly other organs. What it’s in: Skins of Florida oranges.

• Green #3 (Fast Green) Caused significant increases in bladder and testes tumors in male rats. What it’s in: Drugs, personal care products, cosmetic products except in eye area, candies, beverages, ice cream, sorbet; ingested drugs, lipsticks, and externally applied cosmetics.

• Red #3 (Erythrosine)Recognized in 1990 by the FDA as a thyroid carcinogen in animals and is banned in cosmetics and externally applied drugs. What it’s in: Sausage casings, oral medication, maraschino cherries, baked goods, candies.

• Red #40 (Allura Red)This is the most-widely used and consumed dye. It may accelerate the appearance of immune-system tumors in mice. It also causes hypersensitivity (allergy-like) reactions in some consumers and might trigger hyperactivity in children. What it’s in: Beverages, bakery goods, dessert powders, candies, cereals, foods, drugs, and cosmetics.

• Yellow #5 (Tartrazine)Yellow 5 causes sometimes-severe hypersensitivity reactions and might trigger hyperactivity and other behavioral effects in children. What it’s in: Pet foods, numerous bakery goods, beverages, dessert powders, candies, cereals, gelatin desserts, and many other foods, as well as pharmaceuticals and cosmetics.

• Yellow #6 (Sunset Yellow)Caused adrenal tumors in animals and occasionally causes severe hypersensitivity reactions. What it’s in: Color bakery goods, cereals, beverages, dessert powders, candies, gelatin deserts, sausage, cosmetics and drugs.

Every year, food manufacturers pour 15 million pounds of artificial food dyes into U.S. foods — and that amount only factors in eight different varieties, according to the Center for Science in the Public Interest (CSPI).

These dyes are so common in U.S. foods — especially kids’ foods — that parents don’t think twice about giving their children rainbow-colored cereal or fluorescent blue “juice,” and adults don’t consider bright orange cheese puffs out of the ordinary, either.

But you might do a double take if these food packages contained warnings detailing what these artificial food colorings may really be doing to your health, and that of your children.

Well, in the European Union at least, they do. As of July 2010, most foods in the EU that contain artificial food dyes were labled with warning labels stating the food “may have an adverse effect on activity and attention in children.” The British government also asked that food manufacturers remove most artificial colors from foods back in 2009.

In the United States, however, consumers are still snatching up artificially colored foods with fervor, as most are completely unaware of the risks involved … and let me just say, hyperactivity in children is only the tip of the iceberg.

If you need further incentive to ditch artificially colored foods from your diet, remember the reason they’re added to processed foods in the first place: to make a food that would otherwise be an off-colored mess look appealing.

When foods are processed not only are valuable nutrients lost and fibers removed, but the texture, natural variation and flavors are lost also. After processing, what’s actually left behind is a bland, uninteresting “pseudo-food” that most people would find entirely unappetizing.

So at this point, food manufacturers must add back in the nutrients, flavor, color and texture in order to make them desirable, and this is why they become loaded with food additives.

Most commonly, additives are included to:

• Slow spoilage
• Prevent fats and oils from becoming rancid or developing an off-flavor
• Prevent cut fruits from turning brown
• Fortify or enrich the food with synthetic vitamins and minerals (which are lost during processing)
• Improve taste, texture and appearance

In the case of kids’ foods, bright colors are also added to attract kids’ attention and make the foods appear “fun.”  But in most cases, if a food comes in an outrageous color that is not found in nature, consuming it is not a good idea.

Take one carefully designed, randomized, double-blind, placebo-controlled study published in the journal The Lancet. It concluded that a variety of common food dyes, and the preservative sodium benzoate — found in many soft drinks, fruit juices and salad dressings — do in fact cause some children to become measurably more hyperactive and distractible.

The study also found that the E-numbered food dyes do as much damage to children’s brains as lead in gasoline, resulting in a significant reduction in IQ.

Let me make it clear that your diet should include a range of vibrantly colored foods … but these foods should be the ones that are naturally rich in color. Red bell peppers, purple eggplant, green spinach, blueberries and rainbow chard are all examples of healthy foods whose bright colors are signs of the important nutrients they contain.

These are the food colors you need in your diet … not the man-made varieties found in most processed foods. The good news is avoiding artificial food dyes is incredibly easy — just stick to whole fresh foods and avoid the processed ones.