There’s no simple way to put this: Your nutritional needs change with age. The change has several causes. You might not have the same appetite, food doesn’t taste as good, you have trouble chewing, or it gives you a bout of indigestion. And even if you’re still eating the way you always have, there’s a high probability that you’re not absorbing nutrients at nearly the same rate as you once were.
Nutritional deficiencies can occur at any age, but they are far more likely in adults 65 and older. This is precisely the age group that’s affected by a growing list of chronic health conditions.