Question: At age 50, my wife has decided that she wants to be a vegetarian. She thinks it will make her healthier. She is already thin and I’m worried that she’ll lose even more weight if she doesn’t eat meat. Is this a valid concern?

Dr. Hibberd's answer:
It is now well known that a vegetarian diet can be healthy and prevent health problems, such as cardiovascular disease -- but only when all nutritional needs are met with a good balance of fruits and vegetables. The American Dietetic Association (ADA) recommends various food groups and recommended servings of each. The ADA also warns of the risk of vitamin B12 deficiencies in strict vegetarians. A well-planned vegetarian diet can meet the needs of people of all ages, including children. If she follows a well-devised vegetarian diet, your wife will likely feel fitter and more energetic. To create a vegetarian diet that's right for her, encourage her talk with her doctor or a registered dietitian.