I am a fellow Regenerative Medicine physician and D. O who decided to try Active PK. I have a high tech scale that can measure internal abdominal fat as well as overall fat, lean muscle mass and water content. While I could always loose weight easily by increasing activity and watching what I eat, I could never get the internal fat number to budge much until I started the Active PK. For the readers, the internal fat is what is thought to increase your risk of diabetes, heart attacks, strokes and other serious medical problems. That number is now into the healthy range. I do seem to have more energy in spite of eating less and as I am not really hungry, it is easy to stay on a reduced calorie diet. Great Product. Dr. J.