Orange juice has calories, mostly from sugar, like most foods and drinks.
orange juice can spike and crash blood sugar without satiating, digestion-slowing elements like fiber, healthy fats, or protein, causing weight gain like soda.
Study of 180,000 participants over 24 years found that drinking a serving of fruit juice daily increased the risk of type 2 diabetes by 21%
One American Journal of Clinical Nutrition study found that overweight men's blood pressure dropped after consuming 2 cups of orange juice daily for a month.
Over 20 years, cohort study participants who drank more than half a cup of OJ a day had a decreased rate of hypertension, a precursor to cardiovascular disease.
If you limit your OJ intake, there are other methods to boost your heart health: Simple methods to Keep Your Heart Healthy, According to Doctors.