Weight for weight they contain 3 times more iron than spinach and 3 times more antioxidant
activity than blueberries.
Chia also has three times more antioxidant
activity than blueberries.
Not exact matches
In one study, the antioxidant
activity in purple sweet potatoes was 3.2 times higher
than that of a type of
blueberry!
Other studies show that
blueberries have much greater anticancer
activity than other fruits.
In fact, many herbs and spices rank even higher in antioxidant
activity than fruits and vegetables, with some spices such as cloves, turmeric, and cinnamon having as much as 10 - 50x more antioxidants measured by ORAC value (on a weight to weight comparison) compared to the mighty
blueberry.
One study shows that cacao which is the dark chocolate's main ingredient contains more antioxidants
activity, polyphenols, and flavanols
than other fruits tested including
blueberries and Acai berries (11).
The organic
blueberries contained significantly more total phenolics, total anthocyanins, and antioxidant
activity (as measured by ORAC)
than blueberries from the conventional fields.
Results from this study showed that
blueberries grown organically had a significantly higher sugar content (fructose and glucose), malic acid, total phenolics, total anthocyanins, and antioxidant
activity (ORAC)
than fruit grown conventionally.
One study showed that cocoa in dark chocolate contains more antioxidant
activity, polyphenols and flavanols
than other fruits they tested, which included
blueberries and Acai berries.
According to one study, purple sweet potatoes have more
than three times the antioxidant
activity than that of one
blueberry.
In one study, the antioxidant
activity in purple sweet potatoes was 3.2 times higher
than that of a type of
blueberry!
According to one study, purple sweet potatoes have more
than three times the antioxidant
activity than that of one
blueberry.22 In addition to sweet potatoes» antioxidant content, these vegetables are also great sources of vitamins C and B5, copper, dietary fiber, niacin, potassium, and iron.23
One study showed that cocoa and dark chocolate contained more antioxidant
activity, polyphenols and flavanols
than other fruits they tested, which included
blueberries and Acai berries (2).