A study has found that patients on new prescription weight-loss drugs may be missing key nutrients, particularly those who don't adjust their diets. The study found that deficiencies can start early for patients who are not getting the right nutrients in their diet. This has led health experts to stress the importance of nutrition education alongside treatment. The missing nutrients can lead to health problems such as scurvy, bone loss, and gout due to high intakes of red meat. For those concerned about nutrient deficiencies, a simple blood test can be performed.