The Hormones That Control Hunger and Fat Burning

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0:00 Hunger Hormones Explained

We have not really gone deep on leptin and ghrelin yet, so let’s touch on those. They are really important.

Leptin and ghrelin are signaling hormones. They tell you, “I’m hungry,” and they tell you, “I’m full.”

If these signals are off, you can feel hungry all the time and never feel satisfied. Do you think that would impact whether someone gains weight? Of course.

This is not about calories. This is about hormones.

0:20 Leptin vs Ghrelin

Ghrelin is the true hunger hormone. It signals hunger to the brain and drives you to eat.

Leptin is the satiety hormone. It signals fullness, and it helps you stop eating when you have had enough.

1:05 Ghrelin: The True Hunger Hormone

When ghrelin is elevated, you feel hungry more often and you can eat more than you need.

If you are constantly hungry, this is one of the first places to look. Again, it is not a willpower issue. It is a signaling issue.

1:55 Leptin: The Satiety Hormone Signal

Leptin is the hormone that tells you when you are full and do not need to eat anymore.

What is interesting is that leptin is produced inside fat cells. So you would think that if you have more fat cells, you would have more leptin, and that leptin would help you feel satisfied.

2:45 Leptin Resistance Explained

The problem is this. With higher levels of body fat, the body can develop leptin resistance. In other words, you can have leptin present, but the brain does not receive the signal properly.

This is a cruel twist. We did not evolve to carry high body fat while eating ultra-processed foods all day. But in modern life, that is exactly what many people are dealing with.

It means leptin does not become truly helpful until body fat comes down and the signaling improves.

The good news is that when you lose fat the right way, you are healing the endocrine system, not just dropping “scale weight.” As fat cells reduce, leptin signaling improves, and it becomes dramatically easier to keep the weight off.

3:55 Adiponectin and Fat Burning

One hormone that is rarely talked about is adiponectin. Most people have never even heard of it.

Adiponectin is one of the hormones that helps the body burn fat for fuel. Many studies show that the more adiponectin you have circulating, the more likely you are to utilise fat.

When the body is inflamed, when insulin resistance is present, or when cortisol is high, adiponectin levels can drop. That means the signal to burn fat is weaker, even though the fat is there.

The body wants to access fat for fuel, but the signal is not strong enough.

4:55 Why Hormone Balance Matters

A highly processed, inflammatory, standard Western diet can drive this imbalance fast.

If ghrelin is high and leptin signaling is poor, you are always hungry and never satisfied. That makes weight loss feel impossible, and it is not your fault.

If you have tried to lose weight with calorie counting and conventional dieting and it has not worked, that does not mean you are broken. It means you were not given the physiology.

5:30 The Key Takeaway

Hunger, cravings, and appetite control are not just about discipline. They are about signaling.

When you return to nutrient-dense, alkaline-forming foods and reduce inflammation, you create the conditions for leptin signaling to improve, ghrelin to settle, and adiponectin to rise, so fat burning becomes more accessible again.