I do know of a couple of people who had this same problem with Algin. Fortunately, the constipation and bloating are usually only temporary, until your body adjusts to the fiber. I would suggest starting off with 1 or 2 capsules daily at first, and then slowly work your way up.

In addition, make sure you are drinking plenty of water when you take the Algin. I don't recommend juice, even though this is what the Nature's Sunshine label indicates. The amount of water needed varies with each person, but a general rule of thumb is to drink at least 8oz of water with a typical 3-4 capsule serving.

I recently spoke to someone who was having this same problem. They had only been taking the Algin for about a week and were experiencing some constipation. So, they actually tried increasing their daily dose and that solved the problem.

Let me know if this helps,