Some very good food
for thought there Andy.
Like your observation with fibre (use time prior to leaving to adjust), I do think something similar needs to be done with fats (and perhaps proteins as well).
There are major issues with oils, and with treating them as fats. I say this as someone that has made my own bread for years (well, the breadmaker has).
When making bread, I noticed that it was a fast indicator of whether an oil
was bad for me. I rapidly switched to a locally obtainable Extra Virgin Olive Oil
, which I had no problem with. But when I tried other Olive Oils, most of them gave me as bad a reaction as Rapeseed Oil. I have only recently found out (thanks to a study in California), that somewhere around 70% to 80% of all Extra Virgin Olive Oils, are fake, so that probably explains it.
So I have switched to Butter, Lard, and Beef Dripping, with no problems at all.
I do think there are serious addictive properties with carbohydrates (whether slower or faster). There's the rapid carb 'high' and following carb 'crash'. The 'crash' accompanied by hunger, and a need to eat (the body is constantly craving real food).
I noticed this at work in a recent video of someone's journey from Germany
in a Bavaria
yacht, down the coast of Europe
and across to the Caribbean
With easily prepared high carb meals
he was eating very frequently, but commented that he was 'always hungry'. I think he posted a link to his videos here, and I watched the rest on YouTube.
It is this sort of thing (along with having been an unwitting lab rat in a fruit and veg experiment
, that ended up being the nonsense called "5 a Day" - mine was an absolute minimum of 9 a day, with a heavy emphasis on fruit, and it wrecked me) that has persuaded me to look more into the High Fat (animal fat), Medium Protein (fish and meat), Low Carb Diet (even zero carb, nobody has died from having no carbs in their diet, though I think a bit of roughage would do more good than harm).
Given today we are encouraged to be brought up on a very unsatisfactory, life long High Carb, Low Fat diet (try even getting a yoghurt today that isn't low fat - yet such a consumption
of yoghurt itself, is a recent phenomenon - I ll not buy low fat anything, so it means I don't buy any yoghurts any more), I think the withdrawal symptoms from such an unnatural and damaging diet (no wonder diabetes is becoming an extremely serious issue, not helped by such poisons as Statins), could stretch for a very considerable period, before the body becomes adjusted to having proper food
supplied to it (maybe even for the first time in its life).
eta: Plus of course there is the extra issue of artificial sweeteners (and what foods and drinks they end up in). The body reacts to them as if it is receiving genuine sugar, but then it doesn't have any actual sugar to deal with. Now I can imagine that reality leading to all sorts of problems, and you may not even have to wait too long, for those reactions to start appearing.
So yes, I won't touch things like 'Diet' soda, even with somebody else's bargepole.
eta2: People don't realise that to make most veg digestible, you have to boil it hard to break it down enough so the body can handle it. We are not built to handle raw veg. If we had the digestive systems of a Mountain Gorilla. the minimum 9 a Day diet I was put on, wouldn't have trashed my insides so badly.