What diet is best for older adults?

Older adults often lose bone density and muscle mass when they concentrate on shedding weight.
High-protein, low-calorie-
Those in the high-protein, low-calorie diet group experienced the most weight loss, but more revealing was that those in this group maintained their muscle mass. They also lost weight on the stomach, hips, thighs, and rear, which can decrease the risk of certain medical conditions, including diabetes and stroke.
Older adults and nutrition-
Older adults have unique nutritional needs and may need to make changes to their diets as the years go by. Muscle mass can decrease as a natural part of aging, and people do not burn calories at the same rate as they do during their younger years.
Targeting nutrient-dense foods is essential for older adults, and avoidance of high-calorie foods that lack vital nutrients is crucial.
Beneficial foods include fruits, vegetables, whole grains, lean meats, seafood, poultry, eggs, legumes, and low-fat dairy. Portion control may also be necessary — for older adults especially — as people may eat more food than they need.
It can be challenging to cook for a smaller family, so experts sometimes suggest cooking ahead and freezing portions to eat later when cooking is less appealing.

The particulars of this latest study seem to mirror the nutritional needs of older adults. However, the authors suggest that the addition of more protein may be the key to avoiding some of the unhealthful pitfalls that can take place when an older adult loses weight.