Some people with weak livers can have a shock reaction. it's best to lull. I was on a 45 day juice fast and broke it with prunes in water, and then ont he third day, i "cheated" and had tofu veggie soup at a chinese restaurant. it was the BEST soup EVER!!! LOL!!!! I'll never forget it. I ate mostly salads and fruits, but the tofu was PROTEIN!!!!