Safety depends on the product, preparation, quantity, and your health circumstances. Whole edible cactus prepared safely as food is different from a concentrated extract or supplement. Seek professional advice if you have a medical condition or take medication.
Is fresh cactus better than cactus supplements?
Fresh, properly prepared cactus can be a food source of fiber and other nutrients. Supplements may contain concentrated ingredients and can vary in quality. Neither form should be considered a proven treatment for cancer or diabetes.