Although many body components do scale to height by a power close to two, others do not. The brain, bone, and mineral mass scale to height by a power greater than two; while fat mass scales to height by a power of 1.8-2.6, depending on the population being studied and the means of measurement used.
用身高的平方来调整体重也可能对不同的器官产生不同的效果。虽然很多身体器官的重量的确约等于身高的平方，但也有很多并非如此。根据研究人群和测量方法的不同，大脑，骨骼和矿物质质量与身高的比率大于二次方；而脂肪量与身高的比率为1.8-2.6。