This is a research article, written for professionals, so it’s dry & full of blahblah, but the take home point is weight loss is not a simple math problem. It is actually a very complex math problem, because I’m good at math & even took physics in high school (I know, you’re all impressed!) but it gives me a headache to look at. Though, TBH, I have had a terrible headache for the last couple of days.
Here is the abstract from the article:
One of the most pervasive weight loss rules is that a cumulative energy deficit of 3500 kcal is required per pound of body weight loss, or equivalently 32.2 MJ per kg. Under what conditions is it appropriate to use this rule of thumb and what are the factors that determine the cumulative energy deficit required per unit weight loss? Here, I examine this question using a modification of the classic Forbes equation that predicts the composition of weight loss as a function of the initial body fat and magnitude of weight loss. The resulting model predicts that a larger cumulative energy deficit is required per unit weight loss for people with greater initial body fat – a prediction supported by published weight loss data from obese and lean subjects. This may also explain why men can lose more weight than women for a given energy deficit since women typically have more body fat than men of similar body weight. Furthermore, additional weight loss is predicted to be associated with a lower average cumulative energy deficit since a greater proportion of the weight loss is predicted to result from loss of lean body mass which has a relatively low energy density in comparison with body fat. The rule of thumb approximately matches the predicted energy density of lost weight in obese subjects with an initial body fat above 30 kg but overestimates the cumulative energy deficit required per unit weight loss for people with lower initial body fat.
Weight, gaining, it losing, whatever is a very complex & personal thing. And I do find it baffling how we can so easily believe some people are just bone thin & that’s it, but find it impossible to believe that some people are just naturally fat.
It made me sad today when I was looking at a picture of a very thin young man, & my first thought was “he must be an anorexic or something”. We have reached a point where all bodies are suspect. Not only if being fat considered a crime against nature, but being thin makes you disordered. If someone isn’t too thin or too fat, how often do we hear about what sorts or surgeries they must’ve had?
Overall the standards for women have gotten to be so thin, I think they want us to disappear all together. Or at the very least, be too weak to fight back. It scares me.
I don’t want to be a size 0, I just want to be my best, healthiest self, who feels positive about life. To that end, I have been working on something, which is going well so far. I will be blogging about it soon. Maybe Tuesday. (Today is my birthday!)