Tag: Metabolism and age

Metabolism gradually declines by approximately 0.7% per year after age 60, significantly altering how does age affect human nutrition, energy needs, and body composition. The dynamic interplay between biology and diet requires different nutritional strategies at every stage of life, from rapid growth to maintenance and repair.

According to a groundbreaking 2021 study published in the journal *Science*, metabolism remains remarkably stable for most adults between the ages of 20 and 60. This finding fundamentally changes how we answer the question: Do energy needs decrease in adulthood True or false? The reality is more nuanced than previously believed, particularly regarding mid-life weight gain.

A newborn infant requires over 100 calories per kilogram of body weight each day, significantly more than any other life stage, raising the important question: what age needs more energy in total? Energy demands fluctuate dramatically throughout a person's life, driven by growth, development, hormonal changes, and lifestyle factors.