They are considered acidic.
Acidity and pH of Cranberries
The acidity or alkalinity of many different types of foods is measured using a scale of pH. Foods that measure a pH above 7.0 are said to be alkaline, while those with a pH under 7.0 are acidic.
Cranberries typically have a pH of around 3.0, making it a fairly acidic fruit. It’s actually one of the more acidic fruits that we have available to us today.
The low pH of cranberries is likely due to its high concentration of ascorbic acid – or vitamin C. Citrus fruit like limes, lemons and tangerines have a pH of 2.4, 3.1, and 4.1, respectively. They also are high and vitamin C.
People on a low acid diet are usually told to stay away from cranberries especially. It’s said that if you have GERD then the acid content in cranberries might make symptoms worse.
Some people find this to be the case, but many others don’t. Gerd is a complicated issue, as are many other ailments that afflict our bodies, and there are many other factors that affect it like stress for example, or being overweight.
So just because you have Gerd or some other issue that’s related to acid, doesn’t mean that you need to avoid cranberries, as they are very healthy food that provides us with lot of beneficial nutrients.
It’s best to listen to what your doctor says of course, but if you’re just tinkering with your diet on your own then perhaps you can try a few cranberries and see how you feel after that.
Then you can decide whether or not you want to continue to eat this nutritious food and gain all the benefits that come with eating cranberries, or move on to something else.
Hope this helps.