Drinking Haitian apple cider vinegar will not directly cause weight gain. Apple cider vinegar is a low-calorie, low-fat drink that contains natural fruit acids and other nutrients. Drinking apple cider vinegar in moderation helps to promote digestion and regulate blood sugar and cholesterol levels.

However, if you drink Haitian Apple Cider Vinegar in excess, it may lead to some side effects such as heartburn, hyperacidity and depotassium. In addition, Haitian Apple Cider Vinegar contains acid, which may affect your dental health if you drink too much of it.

Overall, a moderate amount of Haitian apple cider vinegar will not lead to weight gain, but overdrinking may have some negative effects. If you have any health concerns or are worried about a physical reaction, consult your doctor or dietitian.