It is easier than you think. Although I did not have the keto foods recommended during fasting, I never got hungry after a while. I drink a lot of liquids which helps to keep me going and I take vitamins with my OMAD meal. Everybody is different I still have a good amount of fat stores that keep me going LOL

Don't count the fiber as a carb just the sugars, starches, etc. Fat also helps to assuage hunger. I love real butter. Sometimes I just slice off a chunk of cold Kerrygold and pop it in my mouth. The fat is good for assimilating the Vitamin D3/K2 that I take. It really is easy. Watch some of the videos on YouTube for tips if you like.
Update. On my current intermittent fast, I remain keto throughout and I decided to have a
48 hour fast with no food at all added to this fast. I have broken my record of a previous 36 hours
so I am happy I am getting great results.
I am having even blood sugar readings. In 15 days I have only had to take 6 units of insulin where as I was prescribed 90 units a day!
My mind is clearer, I have loads of energy and an extremely elevated mood.
I takes loads of vitamins and herbal tinctures as well. My meals are carb free. I have protein and low carb veggies for my meals.
I will join the land of the carb lovers for a couple of days after this fast is over on the 31st.
Autophagy:
- destruction of damaged or redundant cellular components occurring in vacuoles within the cell.
begins at the 16 hour fasting mark
at 24 hours fasting this happens:
While fasting,
stored carbs drop after
24 hours, prompting your body to
burn fat for energy
Fasting for more than 24 hours may
lower inflammation by reducing oxidative stress in your body’s cells (
2Trusted Source).
"Although it has been long known that a lower caloric diet contributes to longevity in humans, it is now understood that
fasting can switch the metabolism from using glucose as fuel to using fatty acids. This shift seems to trigger our stem cells to become more active and regenerative. Dec 21, 2021" (dvcstem.com)
Still, many studies indicate that 48-hour fasting can improve
cellular repair more than other fasting methods (
1Trusted Source,
10Trusted Source).
https://www.healthline.com/nutrition/48-hour-fasting#benefits