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Int J Obes. 1985;9(6):381-9.

Obesity and hypertension: long-term effects of weight reduction on blood pressure.


Long-term follow-up studies were conducted on massively obese hypertensive subjects during and after a successful protein supplemented fast (PSMF) in order to correlate blood pressure changes with caloric intake and body weight. The blood pressures in 43 subjects were compared during rapid weight loss and at identical weights during post-fast weight gain (Study A). Blood pressures and body weights in 50 subjects were compared prior to starting PSMF and prior to restarting the program 21 months later (Study B). One hundred twenty-five compliant subjects were observed after one month of weight maintenance (Study C-1), and 39 subjects were followed during six months of weight maintenance (Study C-2). In Study A, during subsequent weight gain on an unrestricted diet blood pressure was significantly higher than at identical weight during continuous weight loss on PSMF. However, this increase in blood pressure was only approximately 30 percent of the original decrease. In Study B, weight loss and blood pressure reduction were significantly correlated. After one month of weight maintenance following continuous weight loss of 73 lb, there was no increase in blood pressure (Study C-1). A small but significant increase in blood pressure after six months (Study C-2) was associated with similar small weight increment. However, all blood pressures remained well within the normotensive range and significantly lower than control values. In this study, long-term changes in blood pressure correlated with changes in body weight.

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