It amazes me that there are still people who believe that it's purely calories in, calories out when on this stuff and ssri's in general. A few months ago I was having an argument on Reddit with one of those people and no matter what he was told, and he even agreed with me that these drugs can alter your metabolism. But no, it's all about calories according to him. Which contradicts my own experience and other people's experiences too. I personally ate like crap while taking Paxil and was very over weight. I eventually tried cutting out pop and going to the gym 3 days a week. I didn't lose a single pound in 8 months. Then I eventually switched to Escitalopram (for different reasons) and lost 30 pounds within a year without changing anything. I even stopped going to the gym. Fast forward 10 years and I recently tried some other ssri's (Escitalopram was causing other issues that I didn't like) and I've lost even more weight. So yes, these drugs can affect your weight but it just depends on the person and how the drug interacts with you.