Organic foods are more popular today than ever before. In fact, nearly 3 out of 4 grocery stores in the US now sell organic products.

Here's a breakdown of what it means for food to be organic, the benefits of eating organic food, and whether it's truly a healthier alternative to non-organic foods.

Organic food is a term used to describe any foods that have been grown or bred using organic farming methods. The goal of organic farming is to reduce pollution, promote sustainable farming, encourage animal welfare, and provide safe and healthy foods for us to eat.

In order for vegetables to be certified organic by the US Department of Agriculture (USDA), they must:

For meat to be considered 100% organic, the following USDA requirements must be met:

A 2016 report from the European Parliament concluded that the techniques used in organic farming can improve the health of animals and help prevent disease in humans.

Specifically, the scientific-backed health benefits of organic food include:

A 2014 review found evidence that organic crops have higher concentrations of antioxidants than their non-organic counterparts.

Antioxidants help to reduce the risk of developing conditions like heart diseases and certain cancers. Here's how the following types of antioxidants stacked up in organic vs. non-organic crops:

"The meat from free-range animals tend to have healthier fats, like omega 3 fatty acids," says Michael Dann, MD, a gastroenterologist, affiliated with NY Presbyterian/Weill Cornell Medical Center."So organic meat, dairy, and eggs could potentially be healthier than their non-organic equivalents."

For example, research shows that organic cows milk contains about 50% more omega 3 fatty acids than conventional, non-organic milk.

Organic food is free of synthetic pesticides, which can be harmful to our health. For example, a 2014 study looked at the effect of exposure to pesticides on pregnant women. Researchers found that a third of the women who lived close to farms where synthetic pesticides were used had an increased risk of giving birth to a child with autism or other developmental disorder.

Organic foods aren't completely free of pesticides just synthetic pesticides. Synthetic pesticides are more toxic than organic ones and may remain on foods for longer, which makes using organic pesticides safer.

"With both organic and synthetic pesticides, it's important for fruits and vegetables to be properly washed to ensure that there are no pesticide residues on them," Dann says.

Overall, the 2014 review on antioxidants found evidence that organic foods contain lower degrees of pesticide residues and lower concentrations of toxic metals when compared to non-organic foods.

"When it comes to nutritional benefits, there have been arguments for and against organic foods," Dann says. "But there is a growing body of evidence that does show that there are potential benefits to consuming organic foods."

In the past, studies have cast doubts on the real benefits of organic foods. For example, a 2012 report suggested that there might be no additional nutritional benefits from consuming organic food, and that there was little evidence to show that non-organic foods pose greater health risks than organic foods.

But more recently, a 2017 scientific review found evidence that organic food may reduce the risk of allergic diseases like asthma and sinusitis and obesity. In addition, research shows that organic farming is better than conventional farming for the environment.

The one universal downside to organic food, however, is that they typically cost more than non-organic produce. For people who would like to eat more organic foods, but are worried about the high costs, Dann suggests buying both organic and non-organic foods as a more realistic solution.

"You should buy a mixture of organic and non-organic foods, especially if the cost is an issue," Dann says. "Pick what types of organic foods are most important for you to incorporate into your diet. It could be more important to some people to include hormone-free meats in their diet, while others might prioritize eating range-free chicken and eggs, or avoiding fruits and vegetables grown with synthetic fertilizers and pesticides"

Choosing organic foods is likely a better option than non-organic, but because organic foods can be expensive, you should be selective when making purchases. If avoiding produce grown with synthetic fertilizers and pesticides is your priority, you should take a look at the Environmental Working Group's (EWG) "Dirty Dozen" list.

The dirty dozen is an annual list of fruits and vegetables that contain higher levels of pesticide residues, based on USDA and FDA reports. As a result, it may be important to buy these organic. For 2020, the top 5 fruits and vegetables you should buy organic are:

The EWG also publishes a "Clean Fifteen" list that highlights fruits and vegetables with the lowest amount of pesticide residues. As a result, it might not be as important to buy these organic. For 2020, the top 5 fruits and vegetables you don't need to buy organic are:

To make matters even trickier, not all foods labeled organic are 100% organic. Here's what the USDA organic labels on your food mean:

The USDA stipulates that a government-approved certifier inspects the farm where food is being grown, to make sure all the USDA's organic food standards are met before a product is labeled organic.

Even though some research has questioned the benefits of organic food, it's never a bad idea for you to buy organic. There's evidence to show that it contains more antioxidants, healthier fats, and uses less toxic pesticides. It also makes use of farming techniques that are better for the environment.

The major downside to buying organic food is the higher cost. Because of this, realistically, it's likely best to opt for a mixture of organic and non-organic foods, depending on your priorities and preferences. If your budget constraints make it unrealistic for you to buy organic foods, don't worry. Fruits and vegetables whether organic or not are healthy and even when conventional produce contains pesticide residues, the amounts are low. Whichever type you choose, aim to eat a variety of them daily.

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