IGF-1 Hormone

Is your current lifestyle protecting you against cancer and accelerated ageing?  Next time you take a blood test, check.  How?

One important factor indicating if you are creating a bodily environment where cancer will thrive or have a hard time surviving is the insulin-like growth factor 1 (IGF-1).  Because of how most of us eat, we do not keep it within optimal levels.  Most of the time it is too high.

Find out what IGF-1 is, how it affects your body and how to make changes to your lifestyle that will greatly impact your IGF-1 levels in a healthy way.

Then, next time you take a blood test, check how well you are doing.

What is IGF-1?

Insulin-like Growth Factor 1 is a type of growth hormone that looks a lot like insulin.  It naturally occurs in the human body and is responsible for growth.  So, it peaks when we have our growth spurts around puberty and decreases over the years.  But IGF-1 also helps build and repair whatever needs to be repaired throughout life.

normaligflevelsIt is mostly produced by the liver and usually in response to the Human Growth Hormone (HGH), or just growth hormone (GH), which is produced by the pituitary gland.

Normal IGF-1 levels depend on the age of the person.  In the graph you see what are called normal IGF-1 levels.  Normal does not imply optimal for health, merely what is common.  In the picture you see normal values according to Rochester University.

Optimal values however, would normally fall lower than the normal, except for the older population. In the picture you see optimal values according to Dr Joel Fuhrman.

optimaligf1levels

These levels are based on currently available research.  However, it is possible that even lower IGF-1 levels may be healthy when gotten through a lifestyle of intermittent fasting.  The reason is that low IGF1 levels usually correlate with lower growth hormone levels.  In intermittent fasting, there may be higher levels of growth hormone but lower levels of IGF-1.  And so, what is optimal for an intermittent faster may be different than for the average person.  At this stage I do not know of studies that could indicate the best optimal IGF1 levels for vegan intermittent fasters.

Abnormally high or low IGF-1 levels can be due to some disease, like low thyroid activity, liver disease, or diabetes.


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