image of obese female model smiling wearing cooling vest to activate brown fat while enjoying her morning coffee

Brown Fat Activation for Obesity and Diabetes

Activation of brown fat can increase energy expenditure, promote weight loss, and improve glucose and lipid metabolism. Cold exposure and exercise are natural, low-risk and effective ways to activate brown fat.

How does brown fat activation help obesity and diabetes management?

Brown adipose tissue (commonly called “brown fat”) is a unique fat tissue that plays a crucial role in regulating body weight and metabolism. Brown adipose tissue is called brown fat because it is jam packed with the body’s little furnaces - brown mitochondria. Unlike white adipose tissue (“white fat”), which stores excess energy as fat, brown fat is responsible for burning energy and producing heat. Discovered to be present in adults only in the last decade, brown fat activation has emerged as a promising therapeutic approach for the management of obesity, diabetes and other diseases. 

Obesity and diabetes are two of the most prevalent metabolic disorders worldwide. Both are characterized by reduced insulin sensitivity,  impaired glucose and lipid metabolism. Obesity is a condition in which excess fat accumulates in many areas of the body, leading to a variety of health problems, including type 2 diabetes. Diabetes is a chronic condition in which the body is unable to regulate blood sugar levels properly, leading to high blood sugar levels and many negative health consequences.

In nature a  key feature of brown fat is its ability to burn calories and produce heat, a process known as thermogenesis. All mammals use brown fat to maintain a constant internal body temperature when exposed to cold. Activating brown fat  increases energy expenditure and promotes weight loss. Many studies prove brown fat activation can improve glucose and lipid metabolism, making it a much researched promising treatment for both obesity and diabetes.

How can I activate brown adipose tissue for obesity and diabetes management?

There are several ways to activate brown fat, including cold exposure, exercise, and pharmacological agents. Cold exposure is the most well-known, natural and effective  method of brown fat activation, as exposure to cold temperatures can stimulate brown fat to burn calories and produce heat. The best news is that it does not require the extreme cold of ice baths, cold plunge, cold showers or cryotherapy to activate brown adipose tissue. Mild cold exposure around 59F/15C turns on your brown fat furnace. Lower temperatures cause shivering which is triggering skeletal muscle to spasm and is very uncomfortable. In scientific studies of brown adipose tissue, mild cold exposure by turning down the thermostat, wearing a cooling suit or a cooling vest have been shown to be effective. Commercial cooling products hit the market a few years ago. Now consumers can find an alternative to an ice cold cool fat burner, cold shoulder or expensive cooling vest with tubes. Phase change cooling vests that stay at a comfortable temperature of 59F/15C are now offered - the Cool2Shape cooling vest and wraps for brown fat activation.

Exercise is also a potent activator of brown fat, as it increases energy expenditure and promotes the growth and differentiation of brown fat cells. Exercising outdoors in mild cold or wearing a cooling vest like the Cool2Shape which is designed for movement is a great way to combine cold exposure with exercise for brown fat health.

Several  drugs  are being developed and tested for safety  to activate brown fat, including beta-adrenergic agonists, thyroid hormone analogs, and peroxisome proliferator-activated receptor (PPAR) agonists. Beta-adrenergic agonists such as ephedrine and salbutamol stimulate the sympathetic nervous system, which activates brown fat and increases thermogenesis. Thyroid hormone analogs such as thyroxine and triiodothyronine stimulate brown fat by increasing the expression of thermogenic genes. PPAR agonists such as thiazolidinediones (TZDs) and fibrates activate brown fat by increasing the expression of genes involved in lipid metabolism.

One of the most promising pharmacological agents for brown fat activation is the drug mirabegron, which is currently used to treat overactive bladder syndrome. Mirabegron is a beta-3 adrenergic receptor agonist that has been shown to activate brown fat and increase energy expenditure in humans. In a randomized, double-blind, placebo-controlled trial, overweight and obese individuals who received mirabegron for 4 weeks had significant improvements in glucose and lipid metabolism compared to those who received a placebo.

Another promising approach to brown fat activation is the use of brown adipocyte transplantation. Brown adipocytes are the cells that make up brown fat, and transplantation of these cells has been shown to increase energy expenditure and improve glucose and lipid metabolism in animal models of obesity and diabetes. While this approach is still in the early stages of development and is invasive, it has the potential to be an effective treatment for metabolic disorders.

In addition to its metabolic benefits, brown fat activation has also been shown to have anti-inflammatory and anti-oxidative effects. Chronic inflammation and oxidative stress are two of the key drivers of metabolic disorders such as obesity and diabetes. By reducing inflammation and oxidative stress, brown fat activation may help to prevent or treat these conditions as well as other conditions - even aging.


In conclusion, brown fat activation is a promising therapeutic approach for the management of obesity and diabetes. Activation of brown fat can increase energy expenditure, promote weight loss, and improve glucose and lipid metabolism. Cold exposure and exercise are natural, low-risk and effective ways to activate brown fat carrying many other health benefits, while drugs such as mirabegron and brown adipocyte transplantation show some promise as well. One thing is clear - brown fat activation is becoming an important area of  treatment for metabolic disorders.

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