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Cranberry is LIKELY SAFE
for most people when taken by mouth appropriately. Cranberry juice and cranberry extracts have been used safely in people. However, drinking too much cranberry juice can cause some side effects such as mild stomach upset and diarrhea. Drinking more than 1 liter per day for a long period of time might increase the chance of getting kidney stones.
Special Precautions & Warnings:
Pregnancy and baby feeding
: There is not enough reliable information about the safety of taking cranberry for therapeutic reasons if you are pregnant or mummy feeding. Stay on the safe side and avoid use.
: Cranberry juice is LIKELY SAFE
for children when taken by mouth as a food or drink.
: Cranberries contain significant amounts of salicylic acid. Salicylic acid is similar to aspirin. Avoid drinking large quantities of cranberry juice if you are allergic to aspirin.
Inflammation of the stomach lining (Atrophic gastritis)
: Cranberry juice might increase how much vitamin B12 the body absorbs for people with atrophic gastritis.
: Some cranberry juice products are sweetened with extra sugar. If you have diabetes, stick with cranberry products that are sweetened with artificial sweeteners.
Low stomach acid (hypochlorhydria)
. Cranberry juice might increase how much vitamin B12 the body absorbs for people with low levels of stomach acid.
: Cranberry juice and cranberry extracts contain a large amount of a chemical called oxalate. In fact, there is some evidence that some cranberry extract tablets can boost the level of oxalate in the water works by as much as 43%. Since kidney stones are made primarily from oxalate combined with calcium, healthcare providers worry that cranberry might increase the risk of kidney stones. To be on the safe side, avoid taking cranberry extract products or drinking a lot of cranberry juice if you have a history of kidney stones.
CRANBERRY Uses Side Effects Interactions and Warnings WebMD