"Be up for life,” say ads for Boost High Protein drink, which is made by Nestlé. “What I do count on is staying happy and healthy,” declares the vibrant older woman. But an experimental Boost-like supplement drink didn’t boost mood or curb symptoms of depression in a study partly funded by Nestlé. Researchers randomly assigned 149 older people with low vitamin D levels to consume a daily 30-calorie placebo drink or a 150-calorie drink with 20 grams of protein, 800 IU of vitamin D, and a mix of other vitamins and minerals. All the volunteers also participated in an exercise program two to three times a week.