There is some evidence to suggest that pineapple lemon drink may help with weight loss. However, the evidence is limited and more research is needed. One study, published in the journal "Nutrition Research", found that people who drank a pineapple and lemon drink for 12 weeks lost significantly more weight than those who did not drink the drink. Another study, published in the journal "Appetite", found that people who drank a pineapple and lemon drink before meals felt fuller and ate less food overall. This suggests that the drink may help to suppress appetite and promote weight loss.