By Stephen E. Buxser, Ph.D., Nerac Analyst,
Originally Published: July 13th, 2015
A paper just released electronically [Fowler, et al. (2015) J. Am. Geriatr. Soc. In press. Diet soda intake is associated with long-term increases in waist circumference in a biethnic cohort of older adults: The San Antonia longitudinal study of aging.]. The overall study began with 749 Mexican-American and European-American individuals aged 65 or older at the beginning of the study in 1992-1996. The individuals were re-surveyed in 2000-2001 when 79% were still living, again in 2001-2003 when 73% were still living, and finally in 2003-2004 when 71% of the original population was alive and were re-surveyed. Measurements included waist circumference, height and weight recorded at each of the survey times. Groups of individuals fell into three groups with regard to diet soda consumption: non-users of diet soda, occasional users, and daily users. The data were gathered over approximately a 10-year period and provided dose-dependent information on the effects of diet soda consumption. The data were adjusted for initial waist circumference (WC), demographic characteristics, physical activity, diabetes mellitus, and smoking. The findings indicated less than one inch change in WC for non-consumers, almost 2 inches for occasional users, and more than 3 inches for daily consumers. A dose-response relationship indicated that increasing diet soda consumption was associated with increasing abdominal obesity.
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