S. diet), because free-ranging animals such as reindeer have less body fat than cattle and other feedlot animals do.

• 依文奇人从食物中取得的能量，有20%25来自脂肪，而美国人则高达35%25，因为依文奇人吃的驯鹿与其他野放的动物，体脂肪比牛及其他的圈养动物少。