Can we have wheat grass juice during fasting?

Yes, you can have wheatgrass juice. Make sure of the following points - 

1. Have no more than 60 ml
2. Have it empty stomach, even before your first juice of the day
3. After drinking wheat grass juice, don't consume anything for at least 1 hour
4. Make sure to juice only freshly grown wheatgrass. STRICTLY NO POWDERS. Powders contain only 3% of the nutrition of the fresh wheatgrass.