Drinking glucose regularly won't make you fat, and drinking too much will affect your appetite and be bad for your health. Glucose is more easily absorbed than any other monosaccharide, and can be directly used by human tissues after being absorbed.

Secondly, if you want to gain weight, I suggest you eat more foods containing high fat in protein, such as milk, beef, eggs, etc., get enough sleep, and strengthen exercise, develop good living habits, and do more pull-ups and push-ups to enhance muscle exercise.