Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Painful thing

After reading all great reviews here and in David Wolfe "Eating for Beauty" book, i was excited to order it. So, it arrived. I take 1/4 teaspoon as recommended for the beginners. 30 minutes later i get bad stomach pain, which doesnt go away for 3 days. Ok...maybe coincidence. Doing it next time - same result. Very very sad. Sending it back.