31. Mars has only 38 percent of Earth’s gravity.
If you are trying to lose weight and the keto diet is not helping you, one alternative may be to go to Mars. Because the planet is so much smaller than Earth, its gravity is much lower — nearly two-thirds lower than Earth’s gravity! Between this difference in size, mass, and volume, Mars’s surface gravity is 3.711 m/s2, which works out to 37.6% of Earth’s (0.376 g). In terms of their orbits, Earth and Mars are also quite different.
Lower gravity means that things weigh less. So if you weigh 100 pounds on Earth, you would only weigh 38 pounds on Mars. Somebody who weighs 300 pounds here would, in the Martian atmosphere, find himself or herself to be a svelte 115. But the problem, at least for now, is getting to Mars, so you may want to keep trying the keto diet for a few more decades.