More colleges are making portions smaller and adding nutritious ingredients (sometimes without telling) in efforts to encourage healthier eating habits in students, The Boston Globe reported. Among the changes: Smaller portions at Wellesley College, Tufts University, and the University of Massachusetts at Amherst, vegetables that are added to plates at Merrimack College when students ask for meat entrees, a reduction in the size of ice cream servings at Babson College, and a secret switch in the chocolate chip cookie recipe at the University of Massachusetts at Amherst to one based on whole wheat.