A short note on the BMI and on secular changes in BMI

Human size changes over time with worldwide secular trends in height, weight, and body mass index (BMI). There is general agreement to relate the state of nutrition height ratios weight-to-height. The BMI a ratio. It commonly used classify underweight, overweight obesity adults. Yet, inappropriate provide any immediate information on composition.
 accepted that “a simple adults”. stated “policies, programmes investments need be “nutrition-sensitive”, which means they must have positive impacts nutrition”. also for policies address all forms malnutrition by making healthy foods accessible affordable, while restricting unhealthy through fiscal regulatory restrictions“. But these statements are neither warranted arithmetic considerations, nor historic evidence.
 Measuring an appropriate screening tool detecting unusual weight-to-height ratio, but estimating composition, or suggesting medical health policy decisions.