Already in 2006, Felix Grun and Bruce Blumberg, two biologists from the University of California, published the results of a research about synthetic chemical molecules that contribute to the development of obesity.
These chemicals, which researchers have called "obesogens," are synthetic molecules that disrupt the balance of lipid metabolism, as they are known to be endocrine disruptors.
Since 2006, studies have identified approximately 20 "obesogenic" substances, at least 3 of which are highly prevalent in most American households.

You've probably heard of Bisphenol A (BPA), which has been used in the manufacture of rigid polycarbonate and epoxy resin plastics since 1957. It is probably the best known and most present endocrine disruptor. It is found in water bottles and most household plastics, but also in cans with plastic lining.
Although many scientists have sounded the alarm about BPA exposure, the Food and Drug Administration disagrees, claiming that exposure to small amounts is not harmful to health.
A study published in the Journal of Steroid Biochemistry and Molecular Biology has shown that BPA from these containers can contaminate the food and beverages they contain and have numerous endocrine impacts. Many studies confirm these data and the link between BPA exposure and obesity.

The phthalates are other chemical molecules that are used in the manufacture of flexible plastics.

They are also excessively prevalent in our daily consumer products. These contaminating molecules are also present in children's toys, pharmaceutical products, Tuperware-type containers, cosmetic packaging, cans, etc. The list of products that contain these endocrine disruptors is very, very long...
Three independent studies found that increased waist circumference and abdominal fat were directly related to elevated blood levels of phthalates.
Another study in Molecular and Cellular Endocrinology published in 2009 proved that phthalates can trigger weight gain by disrupting hormone receptors that have a key function in lipid and carbohydrate metabolism.

Perfluorooctanoic acid (PFOA) is another long-chain chemical considered "obesogenic".

It is present in the non-stick coatings of cooking utensils. Made from Teflon, it is present in the blood of 98% of people living in the United States. It also has negative health effects.
Recent studies suggest that products containing fluorine or bromine are more likely to be implicated in thyroid problems, another key endocrine gland involved in hormone balance and weight gain.
Other studies have found that high exposure to PFOA increases the risk of chronic kidney disease and various cancers. It also deserves to be included among the "obesogens".

In order to protect the body and the noble organs, the organism begins by storing toxic substances in the least useful tissues, including fatty tissue. It has been shown that the simple act of eating organic or opting for a healthy raw food with very few additives leads to weight loss.
The dietary approach based solely on the ingestion of kilocalories is largely outdated. Many nutritionists are currently interested in the subtle and qualitative energy contributions of foods rather than the number of calories.