Your conclusion doesn&#x27;t follow, there&#x27;s nuance here.<p>She claimed it over 3 months, it might just be errors in measurement, water retention can make a big difference, there might be muscle mass loss (small amount, countered by water retention perhaps), etc. (see my other comment for some other potentials.)<p>Let&#x27;s not just assume our model is definitely correct because it correlates to energy conservation - energy conservation assumes we know exactly energy in&#x2F;out and that weight is a good measurement of the balance of the two and that we are measuring it accurately.