Can obesity be caused by genetics?

Science shows that genetics plays a role in obesity. Genes can directly cause obesity in specific disorders such as Bardet-Biedl syndrome and Prader-Willi syndrome. However genes do not always predict future health. Genes and behavior may both be needed for a person to be overweight.

Obesity is a complex, heritable trait influenced by the interplay of genetics, epigenetics, metagenomics and the environment. With the increasing access to high precision diagnostic tools for genetic investigations, numerous genes influencing the phenotype have been identified, especially in early onset severe obesity.

What percentage of obesity is due to genetics?

However, recent studies suggest that genetics contribute to 40-70% of obesity with the discovery of more than 50 genes that are strongly associated with obesity.

Are genetics to blame for obesity?

Most people probably have some genetic predisposition to obesity, depending on their family history and ethnicity. Moving from genetic predisposition to obesity itself generally requires some change in diet, lifestyle, or other environmental factors.

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Does genetics play a role in weight?

ANSWER: Genetics play a role in determining your weight. But that’s not the whole story. Environment, lifestyle and healthy choices still contribute a great deal to how much you weigh. And your genes also make a difference in the type of weight-loss strategies that may work best for you.

Can obesity be cured?

The best way to treat obesity is to eat a healthy, reduced-calorie diet and exercise regularly. To do this you should: eat a balanced, calorie-controlled diet as recommended by your GP or weight loss management health professional (such as a dietitian) join a local weight loss group.

Is there a fat gene?

So far, rare variants in at least nine genes have been implicated in single-gene (monogenic) obesity. In most obese people, no single genetic cause can be identified. Since 2006, genome-wide association studies have found more than 50 genes associated with obesity, most with very small effects.

Can obesity run in the family?

Some risk factors of obesity can’t be avoided, unfortunately. Your family history can increase your risk of obesity because the disease does run in families, according to the American Academy of Family Physicians (AAFP). However, your genes aren’t the most worrisome risk of obesity.

What is the obesity gene called?

Fat mass and obesity-associated protein also known as alpha-ketoglutarate-dependent dioxygenase FTO is an enzyme that in humans is encoded by the FTO gene located on chromosome 16.

How do we prevent obesity?

Obesity prevention for adults

  1. Consume less “bad” fat and more “good” fat.
  2. Consume less processed and sugary foods.
  3. Eat more servings of vegetables and fruits. …
  4. Eat plenty of dietary fiber.
  5. Focus on eating low–glycemic index foods. …
  6. Get the family involved in your journey. …
  7. Engage in regular aerobic activity.
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Can genetics prevent you from losing weight?

In contrast, people with a strong genetic predisposition to obesity may not be able to lose weight with the usual forms of diet and exercise therapy. Even if they lose weight, they are less likely to maintain the weight loss.

How can we prevent genetic obesity?

A genetic predisposition to obesity can be overcome, in part, by having a physically active lifestyle. Writing in the American Journal of Clinical Nutrition, Vimaleswaran and co-investigators show that physical activity attenuates the BMI-increasing effects of an FTO (fat mass and obesity-associated) risk allele.

What are the behavioral causes of obesity?

Behaviors can include physical activity, inactivity, dietary patterns, medication use, and other exposures. Additional contributing factors include the food and physical activity environment, education and skills, and food marketing and promotion.

Does genetics play a role in body shape?

Researchers say your genes can determine where you store belly fat, and that can have health consequences. Genetics can make everything from brown hair to chronic disease more likely. Now, having an “apple-shaped” or “pear-shaped” body can be added to that list.

Can someone be naturally skinny?

Certainly, it’s important to remember that there are naturally thin people who make an effort and those who just are thin without trying a whole lot. Still, most share key lifestyle traits.

What foods make you fat?

5 Foods That Make You Fat; 5 That Don’t

  • Potato chips.
  • Other potatoes.
  • Sugar-sweetened beverages.
  • Unprocessed red meats.
  • Processed meats.

22.06.2011

Healthy lifestyle