[dasd99]

> I've seen reports from journalists who have tried following those diets saying they were constantly hungry.

This is the inherent problem of journalism - they need sensational results, otherwise the majority of folks wouldn't be bothered to read their journalism.

My 2 cents on this topic: I'm 10+ years vegan and everything is good, it's just no clickbait-worthy story...

[semi-extrinsic]

Oh, I'm not saying you can't live as a vegan. But the criticism of these diets is they prescribe X grams of this, Y grams of that, and use those numbers to compute a global environmental impact. If the X and Y are both underestimates compared to what an adult needs, then so is the impact.