Though you may not know it, there are four forces in the Universe governing all interactions. They are the Strong Force, the Weak Force, the Electromagnetic Force, and Gravity. No, it is not made of glue. So, the best weight loss plan is to go to a planet where G is smaller than 1.
Gravity is governed by a gluon called the graviton.
This particle has never been discovered, but it must exist because I said so. The Electromagnetic force is the force that creates light, magnetism, and electricity. The gluon for the Electromagnetic force is the photon. The electromagnetic force can self-propagate through a vacuum. This is because a magnetic field generates an electric field, and an electric field generates a magnetic field, so the fields fluctuate through the vacuum.