A one-kilogram mass is still a one-kilogram mass (as mass is an extrinsic property of the object) but the downward force due to gravity, and therefore its weight, is only one-sixth of what the object would have on Earth. So a man of mass 180 pounds weighs only about 30 pounds-force when visiting the Moon.
Like all fruit, apples contain fructose, and too much of this sugar at a time provides your intestinal bacteria with a substrate in which to ferment, which leads to gas production, bloating and abdominal pain. Apples are a healthy addition to any diet, but too many can lead to digestive issues.
Apple contains much of fiber that can be found in their edible skins which helps for better digestion and regular bowel movement to treat constipation. Apples are high in pectin, a natural occurring fiber which helps bulk up the stool to treat constipation. Apple with skin provides 3.3 grams of fiber. It contains sorbital, a naturally occurring sugar alcohol which acts as natural osmotic laxative which softening the stools to treat constipation.