How many wheatgrass shot should I take within a day?

The average busy person will have 1-2 servings a day, while someone using wheatgrass therapeutically will have 4-6 servings. (1 serving = 30 ml).

When should I consume wheatgrass?

There is no restricted time to consume wheatgrass since it is not medicine. However, it is best to consume it before meals.

If I'm allergic to wheat, would I be allergic to wheatgrass?

No - most people who are allergic to wheat are allergic to gluten. Wheatgrass doesn't contain gluten. But, if you're allergic to outdoor grass, don't drink wheatgrass.