这个说一岁就可以换reduced得了,如果够胖 http://www.whattoexpect.com/toddler-nutrition/milk-for-toddlers.aspx Milk for Toddlers: Which Kind is Right Here's how to figure out which kind of milk — whole or reduced-fat — to pour into your toddler's sippy cup. If you’re ready to ditch the breast pump or pricey formula, you’re right on schedule. Twelve months is the legal drinking age — for cow’s milk, that is. So now that your child has turned one (hooray!), he’s ready for the big switch. But the question is, which