Originally Posted by
Lobosan
Uhm, literally all calories ARE created equal. I don't think you actually understand what a calorie is lol (it's a standardized unit of heat energy, and your body can and will utilize all of them. Yes, you will burn calories derived from fat even when not in ketosis, amazing I know). You can lose weight eating nothing but Twinkies if you are under your body's daily calorie requirement. You can lose weight eating a balanced diet without any need for fads like carb cutting, fat cutting, etc. While there are nutritional issues to consider, and while keto has proven efficacy for specifically targeting more resistant fat deposits after general weight loss has occured, calories are THE thing that matters most where overall weight loss is concerned.
Oh, and there are several studies that suggest keto is a poor diet for the long term. Particularly for people with Type 1 diabetes (who may benefit from keto but also risk going into ketoacidosis from even a single cheat day), individuals at risk for heart disease and high cholesterol, and individuals prone to digestive problems (good luck doing keto if your gallbladder isn't perfect or you're lactose intolerant!). It's also pretty well documented as causing or exacerbating gastrointestinal discomfort, constipation, hypertension, and other symptoms.
Perhaps most humorously, however, is the fact that the overwhelming majority of people doing keto GAIN THE WEIGHT RIGHT BACK the second they stop their fad diet. Not because "teh carbs are evil" but because keto dieting is literally the co-opting of a survival mechanism whose natural response to the re-introduction of higher calories/more carbohydrates is to store that shit to replenish the lost fat stores. So anything short of permanently slaving yourself to a highly restrictive, bland diet with dubious long term effects is not going to preserve that pecious beach bod.
Incredibly, people have been effectively dieting and losing fat for centuries without the need for keto/paleo/Atkins/whatever. I dropped 30 lbs in 4 months at a SUSTAINABLE rate, and guess what? I still get to eat a cookie now and then without freaking the fuck out. The fact is that unless you're trying to get into single digit body fat, dieting comes down to this: calories in vs. calories used. Yes, balancing your macronutrients is important. Yes, there are several short term benefits to keto outside of weight loss and it is showing some efficacy at treating certain neurological disorders as well. No, it is not a magic bullet or even a necessary/safe one for every person. As with any diet, your mileage may vary, so consult your doctor, eat plenty of leafy greens and remember that a balanced approach to cutting calories, regular excercise, and positive self-motivation will be better for your waistline AND your long term health than any fad diet on the market.
EDIT: It is worth noting that some sources of calories allow rapid access to their energy stores while others break down more slowly (and are thus less prone to spiking blood sugar), that certain processed wheat products can slow metabolic processes and bind up essential nutrients (looking at you, white bread) and that some sources of calories, including red meats, saturated fats, refined sugars, etc have detrimental health effects beyond the number of calories they pack. All calories are equal. All sources are not. Which is why, again, a BALANCED diet is what is reccomended by the vast majority of doctors out there, despite the insistence of know-it-all Redditors that think they know better than the folks with medical degrees ;-)