7. Yogurt
So we’ve got your brain and internal systems humming along now; how about your muscle tone? The answer for that is to get enough protein, and yogurt (especially Greek varieties) can be a great source. Lean body mass tends to decline in later years, and studies show that spreading daily protein intake throughout the day can slow this process.
As a bonus, yogurt contains a lot of calcium, critical to preserving bone density as we age. Women over 50 and men over 70 should pay special attention to their calcium intake.