3.Best: Green Tea
It’s an excellent choice when you’re looking for a little boost. Not only is it calorie-free, but some research suggests green tea extract may help with weight loss. It’s not clear exactly how, but caffeine and micronutrients called catechins may each play a role. The benefit appears to last only a few hours, so it may help to enjoy some green tea at least twice a day.
4.Best: Vegetable Juice
Vegetable juice is as nutritious as fruit juice, with fewer calories. One cup of tomato juice has 41 calories, compared to 122 for orange juice. Choosing juice with pulp gives you some fiber, too. That may help control your hunger.
Vegetable juice does have a lot of sodium. If you buy your vegetable juice from a store, go with a low-sodium variety if you can.
