So basically, this study shows that a juice fast of this composition and calorie count for up to three days is safe and can be somewhat beneficial. But those benefits can't necessarily be fully attributed to the juice itself.
A juice fast, also known as a cleanse or detox, usually entails drinking DIY or premade juices made from vegetables, herbs, and fruit (and occasionally nut milks, like cashew milk, containing whole blended cashews) in addition to ample water, tea, and sometimes clear broths.
2. Make your juice with mostly veggies.
Aim to make most juices 80% veggies. That means 13 out of 16 ounces (or at least 1.5 out of 2 cups) of juice should be from vegetables.
During a juice fast, you should aim to drink at least six 16-ounce servings of juice. That works out to one serving of juice every two hours from 8 a.m. to 6 p.m. You can also drink as much water and herbal tea as you want throughout the day. Adding one or two more servings per day is OK if you feel like you need more sustenance. This amount of juice is necessary to get enough calories so you are still meeting (or close to meeting) your body's basic energy requirements.
What are the benefits of juice fasting?
First, what is a juice fast?