We have not found this to be a major complaint. In fact, in the 15+ clinical studies with over 900 participants, only very mild adverse reactions were documented include: dizziness, dry mouth, and nausea and diarrhea.
Any change in a persons diet has the potential to interfere with an individuals digestion system. It is possible that a number of factors can be involved including gas, Constipation or diarrhea.
This range of symptons are not particularly common there is always the potential of them occurring due to the change of diet and on occassions there is a risk of an allergic reaction, although rare.
So while it’s possible garcinia cambogia extract could make you constipated, it’s not a commonly reported issue and did not turn up much in recent research.
Even multi-vitamins can make some people feel constipated, as these types of reactions tend to be very person-dependent.