@Heathenlass I get your point with your eggs analogy. Maybe in a couple of years Trudi will be back on message.
I write as a T2 who quite frankly brought diabetes on himself. If I had followed the NHS diet with regard to carbs, calories etc I would not have got diabetes in the first place. Equally if I had gone LCHF I would not have got diabetes. The fact is I over indulged in fat and carbs and probably protein, I was HCHF. The sensible course was to eat less and move around more.
The problem I have with the LCHF fraternity is down to my own intuition. Any diet which promotes unlimited amounts of bacon yet frowns on the apple is suspect in my own humble opinion.
I see what you are saying. For many people the NHS advice is an improvement on what they would normally eat

A Diabetic Specialist Nurse friend told me that she was no longer shocked by hearing people say that they never, ever, ate a vegetable or a piece of fruit.
The problem lies with the nutritional advice given out was not originally intended for diabetics, but the population at large . However, it included advice on fats that originated in some flawed and biased studies that originated in the US. I won't trundle on listing these studies, how they came about and what is intrinsicly wrong with them, but for diabetics and people with other health conditions, it opened a Pandora's box of problems.
Fat on its own does not cause weight gain, even though gram for gram it has a higher calorific value, it is when it is combined with carbohydrate it becomes a problem with weight gain. It's obviously not always possible to not combine the two food groups, but for an example of high fat/ high carb food, think of the likely culprits, such as pizza, processed biscuits, cakes etc. For the population as a whole, the more frequent to "usual" consumption of foods such as these is bad news, leading to an epidemic of obesity and other Heath issues.
Fat in the diet plays an important part, and restricting fat can cause nutritional deficiencies and various organ and system malfunctions. Saturated fat has had bad press, solely on the basis of the studies mentioned above, but the real issue with fats are the problems caused by highly processed fats . Simple is better.
The role of carbohydrate in the diabetic diet is another issue. What is being recommended in the current advice is quite a high level of carbohydrate in proportion to the other food groups. The lower fat alternatives that are advised are , because of the process they undergo, higher in carbohydrate than the full fat versions whilst avoiding low fat .Carbohydrate converts to glucose much faster than either protein or fats, and therefore the glucose levels are elevated to dangerous levels for far too long in a diabetic person. It's those starchy carbohydrates that people on low carb tend to avoid. How and what to avoid is very much a personal thing, by eating to their meter, one person could find that they tolerate apples quite well, another could find that apples spike them in to the teens. It's trial and error. It doesn't mean that fruit is automatically forbidden.
In your example, you mentioned bacon. For example, if the same person on one day ate two weetabix for breakfast, and found that their glucose levels at the two hour post prandial testing was in the 20's and on the next day had bacon and eggs, but found their post prandial levels to be 6.5, which choice would a person make if their main concern was to maintain their blood glucose levels in an acceptable range, and avoid feeling unwell at present, and avoid long term diabetic complications ? A dietry load of carbohydrate on a person whose ability to deal with glucose is compromised in the first place just doesn't make sense.
Low carb doesn't have to involve spreading cheese with lard and eaten with a side order of cream , unless someone actively desires that

. The carbs in my diet come from vegetables and berries, pulses and legumes and nuts, the fat from natural sources that are not procesed to become artificially low fat . It may not be everyone's idea of a tasty diet ( but it is!) but it works. For me.
Apologies for the lecture , by the way
Signy