Day 20: Insulin

Breakfast: Coffee
Lunch: 350g of burgers; tomato and pesto; fruit juice
Dinner: Salmon; veg shake (broccoli, sprouts, spinach, butter)

Exercise: Weights

I’ve wanted to write about insulin for a while, but it’s a massive topic and I didn’t know where to start. I’m gonna man-up and give it a shot today.

Insulin is a hormone. Hormones tell your body what to do. Insulin is responsible for managing food intake and energy balance.

So when we eat carbs, they are broken down into glucose in the small intestine and from there, absorbed into the blood stream. The subsequent increases in blood glucose trigger the pancreas to secrete insulin.

Insulin then sends glucose to your cells to be used as energy. If there is too much glucose, insulin tells your liver to convert the excess glucose into glycogen for storage. If our glycogen storage capacity is full, the glucose is converted into triglycerides which are stored in fat cells.

Insulin is mostly associated with carbs and blood glucose, and plays a major roll in metabolism in general. It also allows the body to use other nutrients like amino acids, and is essential if you want to build muscle. In addition to absorbing nutrients, insulin has a separate function. It tells your brain that there is energy in the system and that you don’t need to eat. In turn, this stops you feeling hungry.

In summary, controlling insulin is important for regulating hunger and fat storage. Tomorrow I’ll talk about what happens if we have high insulin levels for prolonged periods.