Sometime in the past year or two, I came across a reference to people who were trying to eat 800 grams of fruit and vegetables a day. For some reason, the idea delighted me, and over time, I occasionally searched for more information ... but mostly I just kind of took in the idea and let it sit in my head.
And now it's a vague ambition - something I don't track (as it turns out, it's not very easy to track it automatically), something I don't take seriously at all - but something I enjoy as an approximate aspiration, something I can aim for in a careless way.
It turns out that 800 grams is a LOT of fruit and vegetables - it's nearly two pounds. (A pound is about 450 grams.)
And yet, it's not at all unachievable. I don't actually manage to get close to that number most days, but I find it fun to try - and it's led to me discovering, or rediscovering, how much I enjoy the taste of vegetables and fruits just the way they are.