I don't think it's possible for the average person to fast in any of the ways suggested here. I think the best thing to do is have a light dinner without carbs and a healthy breakfast. If you do this daily it will be like a daily intermittent fast as you can have a large lunch to indulge yourself. This way you can actually stick to it. I have been doing this for years and am very fit. I made a video showing what I ate for lunch each day while losing weight to prove it works https://youtu.be/v0hYofwTIiw