Brown fat, or brown adipose tissue, is a distinct type of fat that is activated in response to cold temperatures. Its primary role is to produce heat to help maintain body temperature, and it achieves that by burning calories.
Lowering the temperature: Brown fat activates at colder temperatures, right before you start shivering. Some studies suggest turning down the thermostat, taking a cold shower or an ice bath could activate brown fat to help your body produce more to burn more calories.
Although you lose most of your brown fat as you grow, you hold on to some of it. Adults have very small amounts of brown fat in the neck, collarbone, kidneys, and spinal cord. Lean people typically have more brown fat than overweight people. Women also tend to have more than men.
The review largely included studies done on rats, but it found that turmeric and curcumin spices, foods with resveratrol (like wine), green tea, and spicy foods with capsaicin may activate thermogenesis or trigger fat oxidation, which is the browning of white fat.
Tea catechin and caffeine activate brown adipose tissue and increase cold-induced thermogenic capacity in humans - ScienceDirect.
The results show that drinking a single, standard cup of coffee may stimulate brown fat, which would increase the body's metabolic rate—meaning that making these fat cells work hard with the help of coffee burns more calories.
Curcumin in turmeric prevents the formation of the mature fat cells, thus obesity. Another way with which curcumin enhances weight loss is by transforming the white fat into brown fat. White fat is the fat that is stored under your skin and around your vital organs, leading to obesity.
Omega-3 fatty acids (found in fish oil) Retinoic acid (a form of vitamin A) Ginseng. Quercetin (a plant flavonoid found in fruits and vegetables)
Many fruits and herbs boost brown fat, but you have to eat the skin. The waxy coats on apples and other fruits and in herbs such as tulsi holy basil, basil, rosemary, lavender, and peppermint are rich in ursolic acid, which has been found to boost brown fat.
Research has confirmed that being outdoors in the cold can transform white fat into calorie-burning brown fat. If you're unfamiliar with these terms, white fat is the loose and “jiggly” fat that tends to settle in places like the belly, buttocks and thighs. It can also be very tough to get rid of.
There is also mounting evidence that mature white adipocytes, including human fat cells, can be converted into brown fat-like adipocytes, and that the typical fatty acid storage phenotype of white adipocyte can be altered towards a fat utilization phenotype.
Exercise makes cells burn extra energy—that's one way it helps control weight. It also generates a newly discovered hormone, called irisin, that transforms energy-storing white fat cells into energy-burning brown fat cells. Irisin also appears to help prevent or overcome cellular changes that lead to type 2 diabetes.
Why? Because humans can't quickly metabolize the yellow carotene found in vegetables and grains. So carotene migrates to our fat cells and settles there.
To burn 1000 calories through exercise, engage in activities like running, high-intensity interval training, rowing, using the elliptical machine, cycling, using the vertical climber, or jumping rope.
Cold temperatures activate brown fat, which leads to various metabolic changes in the body. Most of our fat, however, is white fat, which stores extra energy.
A 2022 review of 18 studies that examined the effect of berberine on body weight and 23 that examined its effect on body mass index (BMI; a value based on weight and height that may help determine whether a person has a healthy weight) found significant decreases in both weight and BMI in people who took berberine.
Further, ICE consistently increases the activity of brown adipose tissue (BAT) and transitions white adipose tissue to a phenotype more in line with BAT. Lastly, the combined effects of ICE and exercise do not seem to provide any additional benefit, at least when exercising during ICE bouts.
We've known for decades that cayenne pepper increases metabolic rate, but we didn't know how. But studies show that this class of compounds increases energy expenditure in human individuals with brown fat, but not in those without it, indicating that individuals increase expenditure right off the BAT.
Together, these results suggested that AF promoted the beiging of WAT, possibly contributing to the energy metabolism of fat tissue. Acute fasting (AF) induced the browning of white adipose tissue (WAT).
Several studies suggest that curcumin, a primary compound found in turmeric, may help with weight loss. According to a 2023 review of studies, curcumin supplements help to reduce body mass index (BMI) and promote weight loss.