What you're referring to, is the basic concept of thermodynamic calorie in/calorie out.
Yes, you can "just" reduce food and lose weight if you hit deficit numbers.
But if you don't do it correctly, you'll feel like trash, you'll suffer bad cravings, and put yourself in a stressful mental situation for days, possibly putting your job at risk.
You have to:
- Eat less than what you're already eating
- But enough to nourish yourself so you keep being in good shape for your work and hobbies
- Manage hunger
- Make the change sustainable so you can keep doing it for the rest of your life.
It's specially hard when your work is entirely sedentary, you live alone and, ironically, when you have a salary that let's you order food every day.
A lot of people don't have it hard. Maybe because they have someone cooking for them at home, because they meal prep the entire week, or because their work is so physically intensive they can just wing it and burn everything with what they need to do for a living anyway.
Inaccurate in my opinion. Let's say you eat 2500 calories a day usually. But you want to lose weight so you reduce it to 1800.
Except your calories are from pop tarts.
If you ate 100 calories of pop tarts every hour you're awake for total of 1800 calories... At the end of the month you'd be fatter.
If you ate 1800 calories of pop tarts once a day in 1 hour, you might maintain weight or loose a little. Maybe.
If you had 3600 calories of pop tarts in a few hour window, and then didn't eat again for 48 hours, you'd lose weight in a month.
Insulin control is 99% of losing weight. Yes thermodynamic blah blah, but unless you pay attention to hormone control that controls metabolism in general, it's not going to work without insane willpower to keep your 'calories out' higher than your body wants.
If you repeated the 3600 calories every 48 hours with beef instead, you'd lose weight like never before.
It is only thermodynamically impossible if you assume 100% efficiency in energy extraction from food, but in practice we only extract a very small amount of energy from matter. Thermodynamically you could extract ~10^12 kcal from a Pop Tart if you converted its mass into energy.
Not that I agree that for a human metabolism meal timing makes much of a difference in energy extraction, but it wouldn't be thermodynamically impossible.
It's insane to me that people keep talking about the energy in part. Forget that.
Realize that WHAT you put in can change what energy out is.
If I gave you 1800 calories of vodka at 8am, would your use the same amount of energy during the day, and even make it to your 7pm gym? No.
Ok, well sugar isnt exactly the same obviously, but it can also affect what you do that day, how your body acts, your brain even.
Your energy out gets totally messed with after you have tons of alcohol for obvious reasons.
Something similar happens on sugar/spiked insulin levels. Can you willpower through it and increase your energy out by running til you drop dead and lose weight? Sure. But it's not easy.
What's way easier is not having the insulin spike in the first place.
Yes it can affect what you do. That's the calories out part of the equation.
Nobody claims that the quality of what you eat has no effect on you, but every study shows that if you maintain the same calorie intake and expenditure it doesn't really matter how you consume the calories or how you expend it.
Well then luckily that shows you hopefully how bad studies are.
Because I assume that you agree that eating 100 calories of Pop-Tarts per hour for 18 hours for 30 days, would give you a different result than eating 3 days worth of Pop-Tarts in a few hours once every 3 days for a month.
To not understand that would mean that while believing some studies, you completely ignore all the studies that have been done on insulin and weight gain.
> Because I assume that you agree that eating 100 calories of Pop-Tarts per hour for 18 hours for 30 days, would give you a different result than eating 3 days worth of Pop-Tarts in a few hours once every 3 days for a month.
I agree that you would feel very differently in those situations and it's likely you wouldn't spend the same amount of energy unless you really make an effort to do it.
I don't agree that if you do make an effort to spend the same amount of energy you would have different results with regards to weight loss.
Two weird assumptions here...1, that massive amounts of constant blood sugar/insulin don't affect metabolism.
2, that in the face of crazy long term insulin/hormone disruption, people will continue to be just as active as if they had a sane diet of mostly meat and vegetables.
Are you saying raising your insulin levels hourly, 18 times a day, will not do anything to your metabolism? Did you even read my post, or did you just instantly reply with the same pedantic reply which my post was specifically meant to address?
Insulin control is about managing hunger more than a direct cause for weight.
You don't even need to do keto or wacky "just meat" diets to handle insulin. Protein consumption prevents insulin spikes for around 1-2 hours after eating.
Also, proteins and fats slow down digestion.
Turns out, the good old Mediterranean diet is spot-on for a healthy lifestyle.
I know a guy that has had meat only for 3 years now. Most fit guy I know.
My father and I have avoided carbs for a few years now. Can do home renovations, gardening, dirt bike riding, and hikes better than we ever did eating carbs. Unless you're doing long distance hikes/running/hard core sports, I really don't think that's true.
The first law of thermodynamics applies to closed systems, which your body is not. Yes it is true that, very broadly speaking, eating more results in weight gain past a certain point. But first principles are not the most proximate reason for that by a long shot.
That's exactly why I liked being on keto. Never felt hungry, had way more energy, mental health improved a lot. No other diet had those effects. I've been off it for a while and I feel gross again.
You can fill yourself up with lower calorie food too. Most people don’t eat enough vegetables. They basically take up space in the gut, make you feel full, while you get your 5 calories from an entire bowl of lettuce or whatever.
Right, so exactly like I said, it's very simple. If you want to lose weight, reduce calories.
If you add extra modifiers like "I want to feel great while doing it" and "I want to lose weight while sedentary" and "I want to continue eating whatever stupid thing I want" and "I need to be able to scroll tiktok for at least 3 hours, leaving no time for cooking", it gets much more complicated.
Side note: LOL at "but if you're craving food you might get fired!!1!" - this is professional victimhood at its finest.
Even then, limiting calorie intake isn't all that difficult; there's a reason why intermittent fasting took off and so many people were getting results from it.
Not necessarily. Some people respond well too intermittent fasting but not everyone. Some people respond to keto but not everyone. And just because you respond doesn't mean it's gonna take you to where you need to be.
I've always been skinny but for some reason I've gained weight recently. Even with keto, intermittent fasting, tirzeptide, and workouts twice a week I have only lost 5 lbs in months. When I was skinny and forgot to eat, I would feel a little crappy but still could function. Now I begin to feel incredibly depressed, I can't sleep nor focus. This solidified it to me that there's a circuit in your brain that controls feeding and if it's out of whack it'll punish you until you eat. Dieting takes months and no one can go that long without sleep. So it's still a practical problem, its just hard to see if your system is well calibrated.
> Even with keto, intermittent fasting, tirzeptide, and workouts twice a week I have only lost 5 lbs in months.
If you're combining a ketogenic diet AND intermittent fasting AND a GLP-1 inhibitor AND exercise and you're still losing less weight than observed in the Ozempic studies, it's likely that there's more to this story.
Ketogenic dieting does not automatically translate to weight loss. Keto simply makes it easier to reduce caloric intake. It's actually very easy to gain weight on a keto diet due to the high caloric density of consuming that much fat.
> Now I begin to feel incredibly depressed, I can't sleep nor focus.
Honestly if you're having these dramatic negative effects from minor caloric restriction with GLP-1 inhibitors, something else is going on.
Not that I think it's necessarily appropriate to discuss here, but I've also been of the opinion that fiber is pretty dang necessary for health. It limits calorie uptake, it massively helps shield against sugar uptake, it helps us poop better, etc.
Started having sweetened oatmeal for a midnight snack and already I feel better all over.
"if you eat according to this plan and make sure to get 8 hours of sleep a day, you won't even feel the cravings"
Is stuff that fat people say. They totally buy into it and buy all of the products to help them convince themselves this is true. Then they get disillusioned when it doesn't work, have a crisis of faith, then go to the next fad to get over the self-hatred caused by their failure at sticking to something so easy.
Intermittent fasting is great. It got me from 225 to 165, kept it off for the past few years with no effort (my entire metabolism recalibrated to 165-175, I guess.) I also know people who cry actual tears when they're very late for a meal, or panic. Those people need therapy and/or maybe an injection to artificially lower their appetites to the level where I also artificially lowered my own appetite.
Intermittent fasting is no more natural than injections. Dieting is modernity.
I’m certain IF more closely resembles how humans ate for millions of years, not knowing when our next meal would come before becoming an agrarian society, and we haven’t had much time to evolve since then.
So, yeah, dieting is modern, but so is an abundance of food. Both are equally unnatural.
This is literally the argument keto, carnivore, and caveman diet people make. "I feel like this is how we ate 10,000 years ago, so it must be natural and therefore good!"
We also didn't get vaccines for most of history. That doesn't mean remaining unvaccinated is good.
For the record, keto works for me (including bloodwork to prove it) but is unsustainable. My mind is never sufficient compared to when I'm eating normally. It's observable in my work and parenting. Although, last time I was on keto, my cholesterol was through the roof. I went off keto and three months later numbers were back to normal. And I wasn't consuming a shitton of meat and butter or anything. I was pretty close to exactly the right numbers for optimal health. Just...something made the numbers terrible and I've no idea why. Did a re-test to confirm. Same awful cholesterol.
On IF I actually got fatter. Numbers worse. Less healthy. Couldn't exercise as vigorously.
For me, calorie counting works. It's also not sustainable, because with kids you get in a rush and if you have a normal social life you eat at places you can't calorie count.
To stay healthy I just try as hard as I can and exercise (distance running, weightlifting, tennis when I can, which is pretty rare with three young children).
We didn't have vaccines millions of years ago, so we didn't evolve with them. We've always been eating, so our bodies literally evolved completely around resource acquisition.
Why is this such a complex concept for so many? I literally cannot think of anything simpler.
It IS simple to reduce your weight. There are like, two things you need to do. It is, however, VERY hard to actually do those things.