Meat has really dense energy and you sound like you felt the difference. Eat as you wish but based on how you felt the first time, I would recommend sticking with how you were eating prior to that. A lot of life in fruits and vegetables 🙏🏻
Vegan diet is very bad in medium and long term. You can check this by a lot of vegas that after years are very ill.
I think that the best diet is something like this: fruit in the morning, some low toxic veggies+ meat for lunch and dinner. Animal protein is needed for good health as it is by far the best quality protein available.
For reefiding, I would recommend also bone broth, some boiled veggies like broccoli, always in small amounts. Second day I would do some fruit and also meat (with low salt).
I used to love eating Japanese clear soup w/ sushi or literally just bacon & eggs. I also lost 20 pounds only eating McDonalds within two weeks with an intermittent dry fasting routine and didn’t feel any different. I think it all depends on the person tbh. I had a lot of body fat and was very fasting adapted, so it may have affected me differently. I would say high protein is the way to go. I didn’t eat any vegetables when I was doing my weight loss journey :D