If you need glucomannan review. You can visit sybervision.com. Glucomannan is a dietary fiber derived from the Konjac plant of South East Asia. Besides weight loss, glucomannan is widely popular for constipation, high cholesterol, acne, and type 2 diabetes. Glucomannan is a soluble fiber, meaning is viciously absorbs water into a gel like blob. A clinical study published in pubmed.gov revealed that taking 1g of glucomannan with 8oz of water 1 hour before 3 meals can help you lose 5 pounds in 8 weeks. For more info visit sybervision.com.