Morbidly A Beast:
you can’t control where body fat accumulates that is down to genetics, man boobs are usually just fat chests, and it will happen as you put on weight.
Lockel:
^ this but if you’re looking for a specific diet I’d suggest eating or drinking things with high sugar or are high-fructose corn syrup. Alternatively, you could also take estrogen supplements or drink soy milk which contains isoflavone, a compound that’s similar in structure to estrogen.
I would just be careful in taking it because it could lead to depression symptoms and some other health effects like erectile distinction but it’s probably the fastest way to increase breast tissue imo.
Soy milk doesn't have enough isoflavone to cause any kind of hormone change. It will not raise estrogen or lower testosterone.
That being said, there are benefits to consuming soy, so feel free to indulge.
I do not recommend taking estrogen supplements outside of gender-affirming care or other medical needs. It will give you a lot more changed than moobs. Also, there is a difference between gynecomastia and having a fatty chest.
Unfortunately, unless you get plastic surgery, you can't control what your body will look like as you gain weight. Maybe you'll get moobs. Maybe you won't. Either way, just embrace your body for what it is.
All bodies are beautiful.