Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Toxic?

I used the original CleanseSMART 'advanced cleanse' kit for five days as directed, with a mid-day supplement of OilSMART and FiberSMART as suggested in the product insert. The feeling of toxicity came on within two days along with a *decreased* regularity and mild diarrhea. I couldn't get myself to keep taking the pills with how I bad felt. And with others frequently asking me whether I was feeling alright, I must not have looked that well either...I have had a very healthy lifestyle and diet for decades and can't explain the results based on any high level of accumulated toxins being released. The natural ingredients included in this product's formulation may just be toxic to some people including, unfortunately, me.