After I turned about 35 most of the carbs had to go, I had gotten up to 205 pounds. I stick mainly to a paleo/low-carb type diet, mainly meats, nuts, oilve oil, and vegetables. No gluten, rice, legumes, sugars, dairy, etc most of the time.

I play tennis, basketball, and do basic calisthenics a few days a week. I do give myself a cheat day two or three times a month and have some pizza or fries or pasta or something like that. It keeps me around 180 lbs at 5'10" but like I said, that's what works for me.

A woman I used to date had lost 40 pounds and maintained it by doing Nutrisystem and hitting the gym, it worked for her. A guy I worked with ate Healthy Choice meals but sat at his desk all day on the computer and on the couch all evening gaming, never saw him lose a pound. Another guy at work would complain about it being impossible for him to lose weight, he is 350+ pounds and I have seen him eat three Chinese food entrees in one sitting or come in to the office carrying two full bags of fast food burgers and fries, easily 2000-3000 calorie lunches.

It's an individual thing, different things work or don't work for different people. I'm a big believer in cutting out most of the carbs since that's where I found success.