• This image provided by The John Innes Centre, UK, shows a salad made with red and purple tomatoes. A small British company is planning to apply for U.S. permission to produce and sell purple tomatoes that have high levels of anthocyanins, compounds found in blueberries that some studies show lower the risk of cardiovascular disease and cancer. The Food and Drug Administration would have to approve any health claims used to sell the products. Cancer-fighting pink pineapples, heart-healthy purple tomatoes and less fatty vegetable oils may someday be on grocery shelves alongside more traditional products. (AP Photo/Andrew Davis, The John Innes Centre, UK)

    This image provided by The John Innes Centre, UK, shows a salad made with red and purple tomatoes. A small British company is planning to apply for U.S. permission to produce and sell purple tomatoes that have high levels of anthocyanins, compounds ... found in blueberries that some studies show lower the risk of cardiovascular disease and cancer. The Food and Drug Administration would have to approve any health claims used to sell the products. Cancer-fighting pink pineapples, heart-healthy purple tomatoes and less fatty vegetable oils may someday be on grocery shelves alongside more traditional products. (AP Photo/Andrew Davis, The John Innes Centre, UK) (The Associated Press)

  • FILE - This May 10, 2013, file photo shows a genetically engineered potato poking through the soil of a planting pot inside J.R. Simplot's lab in southwestern Idaho. Cancer-fighting pink pineapples, heart-healthy purple tomatoes and less fatty vegetable oils may someday be on grocery shelves alongside more traditional products. These genetically engineered foods could receive government approval in the coming years, following the OK given recently given to apples that don’t brown and potatoes that don’t bruise.  (AP Photo/John Miller, File)

    FILE - This May 10, 2013, file photo shows a genetically engineered potato poking through the soil of a planting pot inside J.R. Simplot's lab in southwestern Idaho. Cancer-fighting pink pineapples, heart-healthy purple tomatoes and less fatty ... vegetable oils may someday be on grocery shelves alongside more traditional products. These genetically engineered foods could receive government approval in the coming years, following the OK given recently given to apples that don’t brown and potatoes that don’t bruise. (AP Photo/John Miller, File) (The Associated Press)

What's next? Next-generation GMOs could be pink pineapples, purple tomatoes, healthier oils

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Cancer-fighting pink pineapples, heart-healthy purple tomatoes and less fatty vegetable oils may someday be on grocery shelves alongside more traditional products.

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These genetically engineered foods could receive government approval in coming years, following the OK given to apples that don't brown and potatoes that don't bruise. The companies behind these foods are hoping customers will be attracted to health benefits and overlook concerns about genetic engineering.

What could be next? Del Monte has engineered a pink pineapple with lycopene, an antioxidant that may have a role in preventing cancer. A British company is hoping to sell purple tomatoes that have high levels of anthocyanins, compounds found in blueberries that could lower the risk of cardiovascular disease and cancer.

Other companies are developing modified vegetable oils with fewer unhealthy fats.