What was the original purpose of overweight tables?

The original purpose of overweight tables was to predict insurance mortality rates. These tables were developed to assist insurance companies in evaluating risk and determining premiums based on individuals' weight in relation to height. The underlying idea was that higher weights correlated with increased health risks, which subsequently could lead to higher mortality rates. Thus, these tables served as a tool for insurers to assess the health and longevity of their policyholders, allowing them to make informed decisions about underwriting and coverage. While the concept of categorizing optimal weight for health or assessing dietary requirements is significant in various health and fitness contexts, the initial focus of overweight tables was specifically related to the insurance industry and its needs.