Is writing about my weight loss journey on college apps a good idea?

Your story hit soft spot for me. When I was senior in high school I applied for an ROTC scholarship. I went through the process including PT tests and ended up at interview surrounded by some colonel’s and a general. They asked me one thing I was proud of. I told them how I’d been overweight as a child and took up biking and running to lose weight…I then finished with I also gave up jelly donuts. They all cracked a smile. I ended-up with the scholarship.