Abstract Title:

Cocoa supplementation for copper deficiency associated with tube feeding nutrition.

Abstract Source:

Intern Med. 2006;45(19):1079-85. Epub 2006 Nov 1. PMID: 17077570

Abstract Author(s):

Yasuharu Tokuda, Masayuki Kashima, Mami Kayo, Nobuhiko Nakazato, Gerald H Stein


OBJECTIVE: Because of an increasing number of case reports of copper deficiency associated with long-term tube feeding nutrition in Japan, we identified patients with copper deficiency associated with long-term tube feeding and described the prevalence, clinical data and cocoa treatment for these patients. MATERIALS AND METHODS: We conducted a retrospective study to identify patients who were referred from long-term care institutions and had copper deficiency associated with tube feeding. We reviewed all serum copper concentration data during a 6-year period. We also compared admission and post-treatment peripheral blood counts. RESULTS: Among 210 consecutive admissions with nutritional tube feeding from long-term care institutions (N=210), we identified 13 (6.2%) patients with copper deficiency (aged 46-91; 12 women). All patients had anemia, while most had neutropenia. The range of serum copper concentrations of these patients was 0.1-2.4 microg/L (normal; 6.8-12.8 microg/L). Their feeding formulas revealed a low copper content (5 to 12 microg per 100 kcal of each formula). Cocoa powder was used as the treatment. With cocoa supplements, the blood leukocyte count and hemoglobin significantly improved in all patients. Median leukocyte counts were 1,800 /mm(3)at admission and 6,300/mm(3) at follow-up (p=0.001). Median hemoglobin were 7.0 g/dl at admission and 10.3 g/dl at follow-up (p=0.001). Two patients developed transient tachycardia as a possible adverse effect of cocoa. CONCLUSION: We identified many cases with copper deficiency associated with tube feeding in Okinawa, Japan. Cocoa supplement appeared to be a safe and effective treatment. Increasing the copper content of Japanese tube feeding formulas should be considered for its prevention.

Study Type : Human Study
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