A high compliance rate for regular supplements does not prevent long-term nutritional deficiencies in RYGB patients
Lots of studies have been done on deficiencies and the efficacy of supplementation after RYGB. Most studies have a limited follow-up period. However, some deficiencies may be revealed only many years after surgery, and supplementation compliance is known to drop over time.
Long-term follow-up on nutritional status
In a retrospective analysis of prospectively collected data, the long-term nutritional status of 51 RYGB patients and their compliance was assessed. 35 of them used a supplement on a daily basis, for at least 6 days per week, and were as such categorized as compliant. 16 non-compliant patients were included. Regular follow-up information was collected and combined with their long-term nutritional status, determined during a follow-up visit.
Lifelong compliance for an optimal nutritional status
During the follow-up visits, deficiencies for iron, vitamin B12 and vitamin D were diagnosed in 35%, 16% and 55% of the patients respectively. Compliant use of multivitamins lowered the risk of developing iron deficiency. Furthermore, supplement compliance improved the patients’ blood values of vitamin B11, B12 and D. Because regular supplements, used by most of the compliant patients, don’t fully meet the advised dosages in the guidelines, deficiencies and hypervitaminosis were not optimally prevented.
Prevention of nutritional deficiencies
This study shows the importance of individualized, optimized food supplements and lifelong compliance, to prevent nutritional complications after bariatric surgery. Some deficiencies are only revealed years after operation, making lifelong follow-up by healthcare professionals a necessity to adequately prevent, diagnose and treat deficiencies.
Long-term nutritional status in patients following Roux-en-Y gastric bypass surgery. Dogan, K et all, Clinical Nutrition 37 (2018) 612-617