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Objective: Evidence shows that recent immigrants are healthier than the native-born population, a phenomenon known as the healthy immigrant effect. With increasing duration of stay, this health gap significantly narrows as immigrants' health deteriorates to either resemble or become worse than the host population. However, little is known about the category of immigrants for whom this decline is most pronounced since the extant research largely considers immigrants as a homogeneous group, thus overlooking important racial/ethnic differences. Design: Using data from the 2014 Canadian Community Health Survey (CCHS), we categorised immigrants by race/ethnicity and duration of stay in Canada and compared them to their native-born white Canadian counterparts on the likelihood of having a chronic health condition, using type 2 diabetes (T2D) as a case. Results: In the base model, recent visible minority (i.e. non-white or non-Caucasian) immigrants and recent white immigrants were less likely than the native-born white Canadian population to have T2D (recent visible minority immigrants OR = 0.46, CI = 0.27-0.79, p  = 0.005; recent white immigrants OR = 0.26, CI = 0.11-0.64, p  = 0.003). The odds of having T2D were significantly higher for long-term immigrants than the native-born white Canadian population (long-term visible minority immigrants OR = 1.59, CI = 1.27-2.00, p  = 0.000; long-term white immigrants OR = 1.74, CI = 1.44-2.10, p  = 0.000). In the multivariate model, long-term visible minority immigrants were about 2.3 times more likely than their white Canadian born counterparts to have T2D (CI = 1.86-2.96, p  = 0.000). Long-term visible minority immigrants were about 2.1 times more likely than long-term white immigrants to have T2D (CI = 1.49-2.94, p  = 0.000) Conclusion: Immigrants' health deterioration varies significantly across ethnic categories in Canada. Interventions for facilitating the integration of visible minority immigrants may help reduce these health inequities.