This is yet another video with Dr. Robert H. Lustig, a paediatric endocrinologist.
Here he explains how the industrial global diet raises our insulin levels, leading to hunger, weight gain and metabolic disease.
One of the key driving forces behind this is elevated Insulin levels and how they lead to resistance to the hormone Leptin.
Leptin is a satiety hormone secreted by the fat cells and is supposed to tell the brain that you are full and do not need to eat.
If you’re leptin resistant, it means your brain doesn’t get the signal and thinks it is still hungry.
A Few Points From The Video:
- People can’t “eat less, exercise more”.
- There are biochemical reasons why this is not possible.
- Leptin is secreted by fat cells, and is supposed to tell our brain: “we’re full, no need to eat”.
- Obese people have high levels of Leptin, because they have many fat cells.
- The problem is that Leptin is not doing its job. This is called Leptin resistance.
- Chronically elevated Insulin levels lead to leptin resistance.
- The industrial global diet leads to elevated insulin levels.
- Elevated insulin shunts calories into fat cells, causing starvation at the cellular level and making us eat more.
The video is 8 minutes long:
I tend to agree with Lustig about the “eat less, exercise more” issue.
Metabolic dysfunction caused by the industrial diet makes us eat more. It is a “biochemical force” and isn’t caused by greed or lazyness.
Eating is a primal instinct that willpower has limited control over. That is why I don’t believe in calorie restricted diets, although they do work for some people.
The best way to lose weight, is to reverse the metabolic dysfunction by changing the things we eat, and then the weight goes down automatically.