About fat in the summer

In order to keep the Inuit dog on an even metabolism, he needs to continue to have a portion of fat in the summer. Nothing more than the size of a thumb, but essential. During fall, the portion will increase until the full portion for winter. Notice I am not quoting any amount nor do I specify a date for fall as Inuit dogs are located in different climates. For instance, if 20 g of fat is adequate in the U.K. it is too little in northern Minnesota, and way too little in Nunavut.