Does The Liver Produce Insulin

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Fasting Physiology – Part Ii

There are many misconceptions about fasting. It is useful to review the physiology of what happens to our body when we eat nothing. Physiology Glucose and fat are the body’s main sources of energy. If glucose is not available, then the body will adjust by using fat, without any detrimental health effects. This is simply a natural part of life. Periods of low food availability have always been a part of human history. Mechanisms have evolved to adapt to this fact of Paleolithic life. The transition from the fed state to the fasted state occurs in several stages. Feeding – During meals, insulin levels are raised. This allows uptake of glucose into tissues such as the muscle or brain to be used directly for energy. Excess glucose is stored as glycogen in the liver. The post-absorptive phase – 6-24 hours after beginning fasting. Insulin levels start to fall. Breakdown of glycogen releases glucose for energy. Glycogen stores last for roughly 24 hours. Gluconeogenesis – 24 hours to 2 days – The liver manufactures new glucose from amino acids in a process called “gluconeogenesis”. Literally, this is translated as “making new glucose”. In non-diabetic persons, glucose lev Continue reading >>

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Popular Questions

  1. Winksartist

    Insulin cartridges left out of fridge

    Having collected my insulin cartridges from the pharmacy, I was busy and didn't put them in the fridge overnight. The temperature in the house was about 18 degrees centigrade. Will it be OK to use?

  2. Stump86

    Your insulin should be fine. It's best kept in the fridge until you're ready to use it, but there's nothing wrong with leaving it out for a while.

  3. furball64801

    Shaun gave you good info your insulin is fine.

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