Veggies/fruits
Meats/grains
Dairy products
Sweets: Dark chocolates that are not artificially sweetened. Take the 0 fat whip cream and put it in the freezer and eat that like ice cream without the consequences. Or fruit smoothies or something along the lines of that for dessert.
Proper liquids: Water, juices, tea, even wine for dinner is fine and A beer for lunch can help in little ways.
Miscellaneous foods: Hot peppers, side foods, and snack foods
Of course try and take walks/jogs, bike rides, do some sit ups, push ups, and that kind of stuff with no charge of a gym. You should be fine. If want to add muscles and a build go to a gym then. Beyond that to lose weight can be easy just working out half hour to an hour a day in your own living room or bed. Eat your three meals a day or eat healthy throughout the day in little things. Breakfast in the morning, maybe a yogurt in between, a salad and fruit bar for lunch, a bag of fruit or veggies in between lunch and dinner, and a proper meal for dinner.
Of course can check your foods if anything artificial or preservatives are added. Steroids in meats. Stuff like that.
But then again most people don't know how to shop for groceries. Mainly meats and produce. They just pick up whatever they can and do their best to try and get vegetables and fruits with a main meal.