Citrus Fruits for Kidney Health

Research suggests that citrus fruits, as part of a fiber-rich plant-based diet, may support kidney health indirectly by favorably altering the gut microbiome and reducing blood levels of metabolites associated with kidney stress. The available evidence comes from a single crossover feeding trial conducted in senior dogs, which found that a diet enriched with citrus and other plant ingredients led to decreases in potentially harmful gut bacteria and lower circulating levels of compounds linked to kidney burden. While the direction of this finding is promising, the evidence base is quite limited — one animal study cannot be directly extrapolated to human kidney health, and no human clinical trials or mechanistic studies specific to citrus and kidney function were included in this review. Readers should treat these findings as preliminary and exploratory rather than as established evidence of benefit.