I do the shopping twice a month and each time I get a whole chicken or a similar amount of that in separate parts. Normally it’s about 4 – 4,4 pounds (1,8 – 2 kg). I divide it in 13 – 15 daily portions of ca. 0,26 – 0,30 lbs (0,120 – 0,140 kg) each. The portions vary within 20 percent, depending on how he spent his day. If he ran and burned calories, he would eat more, and if he stayed at home, he would get then less food.