Products such as the Figur Dragons Den attack obesity from both sides - for success, they should reduce the intake of energy and increase consumption. For example, energy intake is curbed by substances that moderate hunger and appetite and increase satiety after eating. Fat binders prevent the absorption of energy by flushing out undigested fat. Energy consumption is often said to be boosted by activating ingredients such as caffeine, L-theanine or guarana, and in this way support weight loss.