Orange juice is a very popular drink throughout the world.
One of the main differences between orange juice and whole oranges, is that juice is much lower in fiber.
This decrease in fiber seems to increase the glycemic index slightly.
A cup of orange juice has a similar amount of natural sugar as two whole oranges and is much less fulfilling.
As a result, fruit juice consumption can often become excessive and may contribute to weight gain and harmful effects on metabolic health.
Quality orange juice can be healthy in moderation, but whole oranges are generally a much better choice.
BOTTOM LINE:
Eating whole oranges is generally healthier than drinking orange juice. Fruit juices tend to be high in sugar, and not as filling as whole fruit.
Source: www.healthline.com