I've been on Lithium on and off for 30 years and I have not tied weight gain to Lithium. I do think that Seroquel and night eating have put on weight and I even imagine it "holds" weight, harder to lose.

I did look this up and found it interesting. : )

Approximately 25% of people gain weight from taking lithium, according to a review article published in Acta Psychiatrica Scandinavica. 1 After analyzing all relevant published medical studies, the authors reported an average weight gain of 10 to 26 pounds among those who experience this troubling side effect.

Meds are different on everyone - what might work for one or cause side effects , another had different results

Relationship Between Lithium and Weight Gain -
Verywell Mindhttps://www.verywellmind.com

Lithium is not usually one that causes weight gain, but all meds are different for everyone. Adjusting your diet and exercise can help manage the weight gain, eating clean, cutting out processed foods, fast foods, eating more protein, fiber things that fill you up so you don't want to snack. Cutting out carbonated drinks, sugary drinks, etc. Getting regular exercise is important.

The meds are a necessity, so adjusting how we live is how you deal with the side effects.

I also experienced this side effect from lithium. The weight gain was due to hypothyroidism caused by the lithium. I really wanted to stay on lithium because it frankly saved my life. Now I take a medication for my thyroid along with the lithium and I'm back to my normal weight. Hope this helps!

Lithium didn't cause weight gain for me, but I did get hypothyroidism too. Does your Dr. do regular blood work on your lithium levels and thyroid? You might ask them about it if they don't.

I've gained weight on other meds and I find eating is almost uncontrollable at times. Try to watch your diet and exercise like OlderCPer said. Sometimes drinking water or diet cola helps curb my appetite when it gets out of control. Maybe you can try that.

Thank you all so much! I'm going to ask my doctor to check my thyroid. It sounds like I may have hypothyroidism.

I’m gonna be an echo here too. Lithium gave me hypothyroidism but I gained weight from the Zyprexa I take.