
It may seem that 100-percent fruit juice is a healthy choice because it contains no added sugar, but a mere ½-cup (equivalent to 4-oz) serving contains 16 g of carbs and about 64 calories, per the USDA. Beyond that, the body metabolizes 100-percent fruit juice in the same way it processes soda, leading to a quick increase in blood sugar levels. Either way, the result is a higher risk for weight gain and heart disease, notes one study.
Therefore, fruit juice isn’t ideal for people with type 2 diabetes, says Lynn Grieger, RDN, CDCES, a health, food, and fitness coach in Prescott, Arizona, and a medical reviewer for Everyday Health.
Other fruit drinks can contain added sugar and even more carbohydrates. Keep in mind that no matter what, it’s easy to drink more than ½ cup of juice, which means the carbohydrates and calories increase as well.
If you simply can’t give up fruit juice, limit your serving size to 4 oz per day, says Grieger. A better choice still is to eat a piece of fresh fruit, which contains valuable fiber that is lacking in juice, and drink water, she advises.