Tips for controlling weight loss?

As somebody who's just barely getting into actually running a good volume of miles (this week will be my first ever at 45+), and got into running after a failed attempt at rowing elite after college (having much muscle that's functionless in running), I'm definitely noticing the scale dropping, and have lost more than 15 pounds since I finished rowing. This isn't a bad thing, and I'm aware its great for speed, but do you guys have any tips for controlling that weight loss, to make sure I'm not losing weight too quickly? I'm at 204 right now (at height 6'7", so I'm not terribly chunky), and I was thinking of setting a preliminary basement of 195, which I'll hit in a month and a half, at the rate I've been losing weight.