The hardest part of Whole30[1] is avoiding food and drinks with added sugar or sweeteners, but I strongly suspect it's also the most effective part for a variety of health benefits, including losing weight. I found that after a month, though, the cravings essentially went away and it was easy to follow (more or less, I don't do it strictly nowadays). I've lost over 20% of my body weight since January.

Drinks were maybe the most difficult for me; I drink coffee with Nutpods[2] and Coffee Booster[3], unsweetened tea, and water now.

For snacking, I like salted cashews, although again, strict Whole30 doesn't really want you to snack.

It does involve a lot of cooking, and (especially when you're following it strictly) makes restaurants difficult. But I think it's worthwhile. I could talk more about it if people wanted but I don't want to divert the conversation.

1. https://whole30.com/new/

2. https://www.nutpods.com/

3. https://coffeebooster.net/