If you are overweight, I assume you are sedentary in your habits. You should eat no more than 2800 calories a day. You must eat 8 oz of protein a day to stay healthy and alert. Remember that eating protein keeps you from feeling starved. Watch the fat. You should not have any more than 2 Tablespoons of fat per day...(olive oil, butter, fats from meats, etc).
To give you some idea of how much to eat, a thin hamburger the size of the palm of your hand contains about 400 calories. The palm of your hand trick works for most meats and proteins.
If you are going out for lunch, and you order a hamburger, and it's huge when it arrives, cut it in half and take the rest home.
One large egg is about 100 calories. I strip of bacon cooked crisp is about 120 calories.
Almost every food in the grocery store tells you how many calories it is, and what the serving sizes are.
If you are eating a salad, you can have almost an entire head of lettuce for 50 calories, BUT...salad dressing is usually about 100 calories per tablespoon, because it contains oil...so, if you are out to eat, or even at home, order the salad dressing on the side and just lightly dip your bite in the dressing to consume less.
Don't play games with yourself, telling yourself that your hamburger is smaller than the palm of your hand, so you can have two. You'll lose that game.
Get a dog, and walk the dog at least 3 times a day. It builds your wind and endurance.
The 20 Best Ways to Lose Weight After 50
Learn to enjoy strength training. Although cardio gets a lot of attention when it comes to weight loss, strength training is also important, especially for older adults.
Team up.
Sit less and move more.
Bump up your protein intake.
Talk to a dietitian.
Cook more at home.
Eat more produce.
Hire a personal trainer.