Blueberry's cousin, the cranberry, can improve bladder health and help prevent bladder infections, according to the website WHfoods. Native to Southern Canada and the northern United States, cranberries may also prevent gastrointestinal infections and promote good oral health. Many people like to eat cranberries in the form of cranberry sauce or cranberry jelly, but people on the go who don't have time to prepare these dishes, have the option to drink unsweetened cranberry juice for its health benefits.
Vitamin C
One cup of unsweetened cranberry juice contains 39 percent of your recommended daily allowance of vitamin C. The body needs vitamin C for cell growth and tissue repair. Vitamin C also helps in forming the protein collagen, which helps in making scar tissue, blood vessels, tendons and ligaments. The body doesn't produce or store vitamin C, so you must derive vitamin C from your diet.
Antioxidants
Cranberry juice contains antioxidants that help to fight cancer-causing agents called free radicals. Antioxidants can help repair damage done to your cells by slowing down damage caused by oxygen or oxidative damage. This damage can cause cancer, diabetes and heart disease. According to the website Eatright, antioxidants boost immune function and lower the risk for developing infections and cancer.
Vitamin E
A 1 cup serving of cranberry juice contains 15 percent of the recommended daily allowance of vitamin E. Vitamin E, a powerful antioxidant, normally found in foods boosts the immune system, can prevent or delay heart disease and protect cells from free radical damage.



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