How does fat impact insulin level?
Dietary fat definitely can affect your glucose levels and insulin.
In fact, There are some studies which show that in Type I diabetics eating high fat meals will actually raise blood sugar levels and sometimes insulin requirements will increase by over about 40%. So there is definitely a need to take into account fat when you’re planning your insulin needs and there is very limited data on this.
My recommendation would be, not to go overboard when it comes to fat and definitely not to increase your saturated fat intake. Saturated fats are found in most processed foods, pastries and animal products. A tablespoon of black seed oil, coconut oil or olive oil tends to be fine with each meal and then you need to think about what other types of fat are in your meal. So adding any fat from your protein and keeping that under control.