Yes, this is advice for people with healthy bodies. Those suffering from other maladies will have other challenges to overcome to lose weight. However, that represents a minuscule percentage of the population. For the vast majority of people, losing weight, and gaining the benefits from doing so, is simply a matter of calories in vs. calories out.
This has been proven false. People are suffering under this lie and gaining weight because when you eat less, take in less of the nutrients your body needs to survive, your body will go into survival mode, lowering the BMR. And it will start stripping your non-essential parts, such as muscle and bone. And finally, people on extreme low calorie diets can actually gain weight because the body is stressed and conserving anything above its new base needs.
Finally, doctors for >100 years have attributed extreme obesity to the consumption of unnecessary carbohydrates.
“For the vast majority of people, losing weight, and gaining the benefits from doing so, is simply a matter of calories in vs. calories out.”
Sell that to someone who hasn’t been on a lot of diets in his life. I have. And your advice SUCKS.
“The First Law of Thermodynamics” has NOTHING to do with dieting. Or animal bodies. You can making dieting easy and effective, or make it incredibly hard and ineffective. I’ve been there and know the difference.
You REALLY need to understand the difference our hormones make. Hormones control much of how our body processes stuff. Insulin has a huge effect on weight gain and fat storage. Please learn more about how animals work and stop citing a “law” that doesn’t have anything to do with animal bodies.