Heavy water Memes

The molecular confusion is real! D₂O (heavy water) contains deuterium instead of regular hydrogen, making it about 10% heavier than normal water. But drinking it won't make you gain weight any more than regular water would - that's not how mass transfer works! The confusion between chemical properties and nutritional impact is peak scientific misunderstanding. Heavy water is actually mildly toxic in large amounts, so this weight gain plan would backfire spectacularly. Chemistry doesn't care about your fitness goals!