Is it healthy to drink only juice for a month?

The short answer is no. Juice does not contain adequate amounts of carbohydrate, proteins, fats, vitamins and minerals that your body needs on a daily basis to optimally perform its functions. There are sources/websites that promote juice fasting to alleviate every ill from cancer to arthritis and/or to rid the body of so-called “harmful toxins”. Unfortunately, there is not a shred of proof that shows juice fasting alleviates any disease or detoxifies your body. However, there is plenty of proof that a healthy diet and regular exercise is the best solution for health and longevity.