9 Hormones That Affect Your Weight 

Hormones are important substances that serve as chemical messengers in your body, and they are involved in nearly every aspect of health, including mood, appetite, metabolism, growth and development.

When your body releases too much or too little of a hormone, it can significantly impact health, including your body weight. So, here are 9 hormones that influence weight.

01. Leptin

People with obesity, resistance to the hormone leptin, which helps you feel full, may lead to overeating. Studies suggest that exercising regularly, eating a balanced diet and sleeping well help lower leptin levels.

02. Insulin

Insulin resistance is associated with chronic conditions such as heart disease & type 2 diabetes. To promote insulin sensitivity, focus on a healthy diet, better sleeping habits and exercising regularly.

03. Cortisol

Cortisol is an important hormone and is known as the stress hormone that is produced by the adrenal glands. Cortisol regulates energy levels & energy metabolism, but high levels can lead to conditions such as heart disease, obesity & diabetes, which can all lead to weight gain.

04. Estrogen

Estrogen is a sex hormone responsible for regulating the female reproductive system and immune, but both low & high levels may lead to weight gain & ultimately increase risk of disease.

05. Ghrelin

Ghrelin is the hunger hormone and helps stimulate appetite & increase fat deposition. But high levels of ghrelin in the blood can lead to weight gain.

06. Cholecystokinin

Cholecystokinin (CCK) is a fullness hormone produced by cells in your gut after a meal. People with obesity may have a reduced sensitivity to cholecystokinin effects, which may lead to overeating.

07. Peptide YY

Peptide YY is a gut hormone that decreases appetite, and people with obesity may have low levels of fullness hormone PYY. Staying active & eating high protein foods may help raise levels.

08. Progesterone

Progesterone must be in balance if the body is to function properly & correctly. Decline in progesterone may be associated with weight gain & depression.

09. Neuropeptide Y

Neuropeptide Y is an appetite-stimulating hormone that may lead to obesity and weight gain. To maintain healthy Neuropeptide Y levels, then focus on eating well and regular exercise.

These hormones are all linked to body weight. It’s important to talk with a doctor or healthcare professional if you feel your hormones may be at unhealthy levels.


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