Move regularly. Aerobic or weight training. Going for a walk. Just move. This is a vital component of an anti-aging nutrition plan.
Next, think of how your grandparents ate. More than likely, they ate small but nutritiously dense meals. The quality of the food you eat is important. Grass-fed beef. Only indulge on holidays.
Another important factor of anti-aging is blood sugar control and insulin. Also, not getting too heavy is important.