Yes, no side effects at all. First 10 days I was on them, I was following the Dukan diet and suffered constipation. On WW, I don´t suffer from any side effects at all so the extra fruit and veggies are making a difference. I find that the tablets supress my appetite and give me somewhat of an energy boost so am very happy on them. They are not at all like Alli - there is no disastrous bowel effects from them.