Quercus' questions/log

[Quercus]

I'm 37 years old, 5'10" tall and 219 pounds, down from 251 in January. Weight has come off primarily do to caloric restriction. I try to eat several times a day, but without too many calories in one sitting.

I've added in treadmill workouts. Based on recent reading, I'm going to be switching from the 75-85% HR longer duration steady state workouts to HIIT.

My goal is weight loss and improved physical conditioning. I'm shooting for something in the neighborhood of 160.

I've read through the forum and through a number of various sites on the web. I want to use a combination of caloric intake management + HIIT training to reach that goal in the most efficient manner possible.

The two questions I have are:

1) What *should* my daily caloric intake be? Currently, I'm eating 1500-2000/day. 1500 leaves me feeling hungry at certain points of the day. At 2000, I'm rarely hungry for long. But, prior to starting exercise, weight loss at 2000 calories a day had slowed tremendously (1lb/week or so).

2) How many days should I be hitting the treadmill?