Organic food costs more, but sales are booming -- up to $15 billion a year. It's not just for adults, there's organic baby food, too. Our partners at Consumer Reports took a look at organic foods to see if the extra cost yields benefits for little ones.

Hannah Gorman's 8-month-old son has just started eating solid foods.

"Apples mixed with oatmeal and rice cereal. And then he's got other stuff during the day which is like sweet potatoes or peas, and it usually has some kind of meat," said Gorman.

Gorman only feeds her baby organic baby food.

"I want to make sure that he gets the best that he can get. And I think organics the best," Gorman said.

Urvashi Rangan, who researches organic food for Consumer Reports, said going organic for your baby is a good choice.

"Baby food is usually made from condensed fruits and vegetables. This means that the pesticide residue can sometimes be concentrated as well. So, you'll get higher levels than in regular food," said Rangan.

In fact, studies have shown that children who eat organic food have lower levels of pesticides in their blood than children who eat regular food. Consumer Reports said pesticides can pose a bigger risk for children than adults.

"Babies' bodies are still developing, so they are especially vulnerable to toxins in foods like pesticides and other chemical additives," Rangan said.

So when it comes to babies, Consumer Reports believes organic baby food can be worth the extra money.

Buying organic baby food is just one example of when paying more money pays off. But Consumer Reports said there are some types of food that paying more for organic does not have as much benefit.

Consumer Reports has this breakdown of foods that they have categorized as "buy" or "don’t buy" when it comes to organic.

Buy these items organic as often as possible

What: Apples, bell peppers, celery, cherries, imported grapes, nectarines, peaches, pears, potatoes, red raspberries, spinach, and strawberries.

Why: The U.S. Department of Agriculture's own lab testing reveals that even after washing, some fruits and vegetables consistently carry much higher levels of pesticide residue than others. Based on an analysis of more than 100,000 U.S. government pesticide test results, researchers at the Environmental Working Group (EWG), a research and advocacy organization based in Washington, D.C., have developed the "dirty dozen" fruits and vegetables, above, that they say you should always buy organic if possible because their conventionally grown counterparts tend to be laden with pesticides. Among fruits, nectarines had the highest percentage testing positive for pesticide residue. Peaches and red raspberries had the most pesticides (nine) on a single sample. Among vegetables, celery and spinach most often carried pesticides, with spinach having the highest number (10) on a single sample. (For more information on pesticide levels for other types of produce, go to: www.foodnews.org

What you'll pay: About 50 percent more on average for organic produce, but prices vary based on the item and the time of year. A Consumer Reports price survey conducted in the New York City area in October 2005 found a premium of 24 percent on organic strawberries and 33 percent on grapes and spinach. Organic Idaho potatoes cost 101 percent more than conventional. When you buy organic produce in season at a farmer's market or directly from local providers, however, you might avoid paying a premium at all.

What: Meat, poultry, eggs, and dairy.

Why: You greatly reduce the risk of exposure to the agent believed to cause mad cow disease and minimize exposure to other potential toxins in nonorganic feed. You also avoid the results of production methods that use daily supplemental hormones and antibiotics, which have been linked to increased antibacterial resistance in humans.

What you'll pay: Often double the price of nonorganic, though you might save money by buying direct from local farms. For instance, in December 2005 the Organic Trade Assocation reported that in Iowa, organic ground beef was available for $4.25 a pound and beef tenderloin for $16 a pound.

What: Baby food.

Why: Children's developing bodies are especially vulnerable to toxins and they may be at risk of higher exposure. Baby food is often made up of condensed fruits or vegetables, potentially concentrating pesticide residues. Michelle Faist, a spokeswoman for Del Monte, says that even though its baby foods are not organic, pesticides and heavy metals are kept below government-recommended levels.

What you'll pay: Varies widely by store.

Buy these items organic if price is no object

What: Asparagus, avocados, bananas, broccoli, cauliflower, sweet corn, kiwi, mangos, onions, papaya, pineapples, and sweet peas.

Why: Multiple pesticide residues are, in general, rarely found on conventionally grown versions of these fruits and vegetables, according to research by the EWG. So if you're buying organic only for health reasons, you may not want to pay 22% extra for organic bananas, let alone more than 150 percent for organic asparagus--the premiums we found in our price survey of several New York City area supermarkets.

What: Breads, oils, potato chips, pasta, cereals, and other packaged foods, such as canned or dried fruit and vegetables.

Why: Although these processed products may have lower levels of contaminants in them, they offer limited health value because processing tends to wash away important nutrients. The process of milling organic whole grains into flour, for example, eliminates fiber and vitamins, though they are sometimes added back in. The more a food is processed, the less health value its organic version offers, especially in products such as cereals and pastas with labels that say "made with organic ingredients." Read the list of ingredients and you might find that while the flour is organic, the eggs aren't. The processed foods with the most added value are labeled "100% Organic" and "USDA organic." Price premiums vary. In our survey, organic Heinz ketchup cost 25 percent more than the conventional product; organic minestrone soup was only 8 percent more.

Don't bother buying these items organic

What: Seafood.

Why: Whether caught in the wild or farmed, fish can be labeled organic, despite the presence of contaminants such as mercury and PCBs. Some wild fish such as bluefish are very high in PCBs, and tuna and swordfish are laced with mercury. The USDA has not yet developed organic certification standards for seafood. In the meantime, producers are allowed to make their own organic claims as long as they don't use "USDA" or "certified organic" logos. California, however, recently passed a law that prohibits the use of any organic labeling on fish and other seafood until either state or federal certification standards are established.

What: Cosmetics.

Why: Unless a personal-care product consists primarily of organic agricultural ingredients, such as aloe vera gel, it's pointless to buy organic in this category. Most cosmetics contain a mix of ingredients, and USDA regulations allow shampoos and body lotions to carry an organic label even when water is the primary ingredient, Hydrosol may also be listed as a primary ingredient in organic products even though it may be primarily water infused with only a small fraction of organic plant material. While the USDA claims that organic labeled-cosmetics follow the same standards as food, we have found indiscriminate use of synthetic ingredients and violations of food-labeling standards. "Many of the ingredients in personal-care products didn't grow out of the ground but in test tubes--they're chemicals," says Lauren Sucher, director of public affairs at the EWG. Just because a product has the word "organic" or "natural" in its name doesn't necessarily mean it's safer. Only 11 percent of ingredients found in personal-care products, organic or not, have ever been screened for safety. In fact, when the EWG conducted its own safety rating of these products (available at: www.ewg.org), scoring them on a scale of 0, for those posing lowest level of concern, to 5, for the highest concern due to potentially unsafe ingredients, those with scores of 4 or more included benign-sounding Naturessence All Day Moisture Cream.

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