Peat Archive

Ray Peat discussed kidney health primarily in the context of mineral metabolism, blood pressure, and hormonal balance. He noted that the kidneys are sensitive to PUFA damage, iron overload, and the effects of chronic stress hormones. He also emphasized that kidney function depends on adequate thyroid hormone and that hypothyroidism reduces renal blood flow and filtration.

Peat's recommendations for kidney health centered on adequate salt and water intake (driven by thirst rather than arbitrary targets), avoiding excessive PUFA-rich foods, and maintaining good thyroid function. He noted that low salt intake can actually stress the kidneys by activating the renin-angiotensin system.