Joan is a 90-year-old Caucasian woman who has recently been diagnosed with osteoporosis after a recent fall that broke her hip. She is 64 inches tall and weighs 115 pounds. Lately she has been complaining about muscle pain in her legs. She eats a limited diet due to a chronic low appetite. A recent blood test shows Joan’s serum vitamin D level is below normal. Her daily diet includes juice or fruit and toast with butter for breakfast; cottage cheese and fruit for lunch; and salad or frozen vegetable with meat or poultry for dinner. She dislikes most fish except canned tuna and she often drinks a glass of fortified milk before going to bed at night. Although she lives in New Mexico, she spends most days indoors. Joan has been taking a blood-thinning medication since she was discharged from the hospital. What vitamins would you suggest that Joan begin to monitor because she may be experiencing low levels? How could she increase the intake of those vitamins? Since she is on blood-thinners, which vitamin should she not overconsume?