The best time to drink celery juice is in the morning on an empty stomach before you consume anything else other than water or lemon water (wait at least 15 to 30 minutes after the lemon before having your celery juice. Celery juice is a medicinal, not a caloric drink, so you’ll still need breakfast afterward to power you through the morning. Simply wait at least 15 to 30 minutes after drinking your celery juice before consuming anything else.
If you’re unable to consume your celery juice first thing in the morning before food, then the second-best option is to drink it 15 to 30 minutes before eating something or 30 to 60 minutes after eating a light snack or 2 hours after eating a heavier meal anytime during the day.
If you’re having 32 ounces a day, you may wish to have it in two 16 ounce servings. You can drink the first serving in the morning on an empty stomach before eating and the second in the late afternoon or early evening, at least 15 to 30 minutes before eating your next meal.