IF is meant to be a tool, that is sustainable, to help you in your journey towards a healthier you. I say, opt for what you’ll stick with, that makes you feel best in every way. Things may change in the future, so adjust as needed, but above all, focus on how you feel best. Hope this helps!
I recently switched back to 16/8 from 20/4. I’m still maintaing a calorie deficit and i have lost weight. However, it’s just been a week since i moved back into 16/8 so not sure of the long term effects.
Most days I’m doing 16:8 or thereabouts and I lose weight. I am counting/limiting calories although not to an extreme degree. For me it’s eating just two meals a day and not snacking throughout the day that is the biggest game changer, rather than the fasting, at least as far as weight loss. Of course I’m hoping the fast will have other metabolic benefits as well.
I say, do what works best for you. If all you can manage is 16:8, do that. You’re not a failure and whatever your goals, you should still be able to reach them.