Indeed - a personal culture and way of life - a LIFELONG journey of self-experimentation with the nuances of things, what the body says & shows, and our own changes.
I’ve been on the self-experimentation industry-critical foodie journey ever since I ate my first Indian/South Asian/Latin American spices in my very early 20s (decades ago, in the late 1980s, and my brain lit up like never before!). Attended my first yoga/mindful stretching class around that time and while continuing that, followed with exploring multicultural traditional dancing & tai chi… and eventually resistance weight training (inspired by Ernestine Shepherd (who didn’t start addressing her health until the age of 57 - and is now IN HER 80s, the world’s oldest bodybuilder)!
What I’ve seen from some amazing crosscultural elders is that self-healing, rejuvenation, and vitality are a human birthright - well conveyed in the film The Magic Pill.
Phinney and Volek point out that there is a range of fat-adapted people, from the ‘carbohydrate intolerant’ who need to stick to 25 net carbs or less - to those who can enjoy up to 50 grams of net carbs or more a day. The recipes from Phinney and Volek, along with the Eades, the fat-adapted include berries, maple syrup, cocoa powder, yogurt - which certainly eradicates any and all “deprivation” notions about LCHF/keto. Even small glasses of wine for some of us non-IR Frenchies or Italianos can work.
And, Dr. Fung has pointed out that the fewer meals/snacks one has per day, the likely higher the carb tolerance due to the hormonal reality of waaaaaay less insulin spikes. For example, industrial peasant Asian culture enjoys a good bowl of white rice or rice noodles daily but only eats maybe one or two times per day - without obesity, unlike average Americans/Brits who are grazing day and night and slamming sodas or pints of beer to the sum of 6-12+ insulin spikes a day.
As western industrial food & sodas have spread to urban centers around the world - a lot of people in the world have had their metabolisms utterly broken. However, individually customized LCHF and VLCHF offer a way forward to a lot of real health & and sustainable ageing.
Within one’s LCHF or VLCHF journey, I think it can be valuable to vary our habits seasonally or monthly - depending on age, sex, locale, etc - as 99.9% of humanity lived very much in reverence to biology in general and in one’s own physical body - in relationship with the seasons and lunar cycle and mitchondrial magic. Whether via experimentation with fat-adapted intermittent fasting on fat (with fatty coffee/tea), bone broth/collagen peptides sorcery, yearly extended fasting for 3-4 days, weekly strength training of some kind for the non-obese, fermented foods, superfoods, resistant starch gut healing, ZC experiments, exploring spices - it’s never boring!!!