FRIDAY, March 24, 2023 (HealthDay News) — For individuals with incident type 2 diabetes (T2D), a greater adherence to low-carbohydrate diet (LCD) patterns is associated with lower mortality, according to a study published online Feb. 14 in Diabetes Care.
Yang Hu, Ph.D., from the Harvard T.H. Chan School of Public Health in Boston, and colleagues calculated an overall total LCD score (TLCDS) among participants with incident diabetes identified in the Nurses’ Health Study and Health Professionals Follow-up Study. Vegetable (VLCDS), animal (ALCDS), healthy (HLCDS), and unhealthy LCDS (ULCDS) were also derived.
The researchers documented 4,595 deaths, of which 1,389 cases were attributable to cardiovascular disease (CVD) and 881 to cancer among 10,101 incident T2D cases, contributing 139,407 person-years of follow-up. Per each 10-point increment of postdiagnosis LCDS, the pooled multivariable-adjusted hazard ratios for total mortality were 0.87, 0.76, and 0.78 for TLCDS, VLCDS, and HLCDS, respectively. Significantly lower CVD and cancer mortality was seen in association with VLCDS and HLCDS. From the prediagnosis to postdiagnosis period, each 10-point increase in TLCDS, VLCDS, and HLCDS correlated with 12, 25, and 25 percent lower total mortality, respectively. For ALCDS and ULCDS, no significant associations were seen.
“Our findings provide support for the current recommendations of carbohydrate restrictions for T2D management and highlight the importance of the quality and food sources of macronutrients when assessing the health benefits of LCD,” the authors write.
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