Advertisement

How is insulin involved in weight loss and fat storage?

Neal Spruce
Neal Spruce on behalf of dotFIT
Fitness

Humans, as periodic eaters, need insulin to survive. Insulin helps the body release stored energy over time to fuel the body’s continuous needs and activities. Insulin is secreted after eating to move food components (glucose, amino acids, fatty acids) into the liver, muscle and adipose tissue (fat stores). As insulin levels diminish within an hour after eating, the hormone glucagon is secreted. Glucagon signals the body to begin releasing stored energy (glycogen from the liver and muscle, and fatty acids from adipose tissue) into the blood stream to fuel the body’s energy needs. This cycle is repeated with every meal. Whether one increases or decreases the size of their fat stores from day to day depends upon the overall relationship of calories consumed and absorbed versus calories burned (energy expended) through metabolism and daily activity. If you are in a caloric deficit at the end of the day, more fat would have been burned than stored, and fat stores would be decreased. However, if you are in caloric surplus at the end of the day, more fat would be stored than burned, increasing your fat stores.

As you can see, insulin is a mechanism for amino acid, carbohydrate or fat storage for daily use. Insulin requires the consumption of excess energy (calories) in order to increase fat stores, but when energy intake is less than used, fat stores/mass will always be reduced regardless of hormonal interplay.

 

Continue Learning about Weight Loss

Can't Lose Weight? Try 7 Minutes of Meditation
Can't Lose Weight? Try 7 Minutes of Meditation
Frantic to lose some weight? First, calm down. Next, try this: Spend 7 minutes a day meditating. Yep, just 7 minutes can help you control cravings, ea...
Read More
How quickly should I lose weight?
Dr. Mehmet Oz, MDDr. Mehmet Oz, MD
When it comes to losing weight, steady and slow is the way to go. Depending on how much you weigh no...
More Answers
7 Common Weight Loss Mistakes—and How to Fix Them
7 Common Weight Loss Mistakes—and How to Fix Them7 Common Weight Loss Mistakes—and How to Fix Them7 Common Weight Loss Mistakes—and How to Fix Them7 Common Weight Loss Mistakes—and How to Fix Them
Deborah Wilburn
Start Slideshow
What Parts of the Body Are Involved In Weight Loss?
What Parts of the Body Are Involved In Weight Loss?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.