So, firstly I have already clarified I meant grains, and not fruits and vegetables. (I've stopped thinking of them of carbs now). Even starchy ones like sweet potatoes. I realise that's mislead people. (I'm not even going to go there with sugar. I'd already assumed people know I don't mean Kit Kats!). I will also acknowledge that I stated the point flippantly, and that was unhelpful. It was intended to be brief and conversational.
I am talking about eating meat, vegetables (not potatoes) fats and dairy. I don't eat fruit myself. (Dairy is controversial, but I'm not giving it up and I don't care what the evidence says)
"[carbs] have nothing you need".....that you can't get from other food groups with less processing, in higher quantities, without a lot of carb.
They don't. Really. You NEED fat. You NEED protein. You NEED fibre. You NEED vitamins and minerals. If you cut them out you'll die. You don't NEED carbs themselves. You can derive energy from fat and protein. Yes, they have energy, and yes you CAN use the energy from them. But it's not necessary. You can derive what you need from protein, fat and fibre. And while they do have smaller quantities of other micro-nutrients, they are not the best sources of any of them. If you're eating vegetables instead of carbs, you're getting plenty of fibre. If you're eating red meat you're getting plenty of B vitamins and protein. And you're not getting carb as well. Which IS just joined up sugar. That your body breaks down into sugar. The carbs don't add anything else.
"[carbs] are not a natural food group" bearing in mind I am talking about grain. Not fruits and vegetables.
I've covered this quite a lot above. But they aren't, as we produce them now. If Stoneage man ate a mammoth, he got fat and protein in a pretty similar format to if we eat meat now. But you can't say the same about rice. Even if its brown. Let alone cornflakes. It didn't exist. You can't chew on an ear of wheat. Even if you cook it. But THAT didn't exist. It was just grass seed. That hairy stuff you see in grass fields. You'd spend a lifetime picking out the itty bitty grass seed, or chewing on hairy grass. And we aren't ruminants. We can't digest grass.
"all carbs are heavily processed"
Again, bearing in mind I'm talking about grain, not fruits and vegetables. And they are. They are all at least threshed, hulled, and milled. Even the brown stuff. Even Quinoa. And that's AFTER the agricultural point above. I've grown quinoa. I've actually processed it (it takes ages. Don't do it. It's a right pain) grains are very processed. Sure brown stuff is LESS processed. But its still not much like the stuff on the plant.
"grains ... really do have limited nutritional value"
The difference between complex carbs and simple ones is largely fibre, but not a lot. And yes fibre is a good thing in itself, but mostly to mitigate the bad carbyness. But if you don't have the bad carbyness you don't need to slow down glycemic load with fibre. Because you don't have the glycemic load. And they don't ADD anything to a diet that already contains enough fibre and vitamins from vegetables which don't have the carbs (in anything like the same quantities) and aren't processed (even a sweet potato or a squash. You can just bake them and eat them) and protein and fat from meat and dairy.
Carbs just don't do anything other foods don't do better, without the drawbacks.
A typical days food for me on low carb would have been
Breakfast: Two large coffees with full fat lactose free milk. I hate breakfast.
Brunch: 2 egg omelette with spinach and ricotta (11 ish)
Dinner: steak, mushrooms in butter, peas, onions in olive oil, steamed broccoli, courgettes, with garlic and herbs. (5ish)
snack - cheese and cashew nuts (10ish)
cocoa with full fat lactose free milk and no sugar.
I drank water and herbal tea. Occasionally had dark chocolate. I didn't eat any carb substitutes (except the lactose free milk). Sometimes I'd have soup for lunch as well, with cheese. or cooked veg with herb butter or oil ( I'm not really a salad fan)I was STUFFED.
That is 112g of protein. 84g of fat and 66g of carbs 15g fibre. I'm happy with that. It's not 'massive slabs of meat' just normal amounts. Plenty of veg. Fibre is fine for me. Yes, there is extra fat, but it's not swimming, and it's below my recommended cholesterol intake. And it's around 1600 calories - 200 more than my fitness pal reckons I need. It's actually really hard to overeat in terms of calories if you don't eat grains and sugar. You just can't put away enough food! Apparently this doesn't meet my iron (75%) or calcium (56%) RDAs. (There's two pints of milk in there! I don't know how accurate MFP is for micrinutrients though) Let's add these ESSENTIAL complex carbs and see if that fixes it....
A cup of brown rice adds 238 calories I don't need in the form of 46 grams of carbohydrate. 5g of protein I don't need. 1.98g of fat I don't need. 2g of fibre I don't need. no vitamin C, 2 percent of my calcium RDA, which isn't significant. 5 percent of my iron RDA, which isn't a game changer. Really why would I bother? It its just calories. And I had enough energy. I have never felt better. And DD didn't sleep through then.
I monitored my blood sugar. It was never low, because I have a functioning pancreas. (That is what it does. If you don't, you are diabetic). I wasn't tired. I didn't get carb flu. I had plenty of energy. I felt a damn sight better than I do now. My unmedicated thyroid wasn't noticeable (bloody is now!). I wasn't anemic. (am now). I lost weight (maybe a stone and a half) until I hit a healthy weight and then I didn't lose any more. Haven't gained it back. I don't have any bloods from the period (which is telling. Because I have bloods so often the surgery phlebotomist knows me by sight and has threatened to put a tap in!) But it actually was the last time I felt well. And that was new.
I know there's no clever citations. I mostly wanted to get the numbers down. I'll look some up tomorrow. If anyone wades through it all.