It is generally accepted that the appearance of stones in the gallbladder contributes to an excess of fatty foods in the diet. Endocrinologist Natalya Liberanskaya says that this is far from the main reason.
“The causes of stone formation are completely different. In most cases, gallstones form from cholesterol clots. But clots are formed not from an excess of cholesterol, but from a lack of bile, or rather bile acids, ”explains the specialist.
Thanks to bile, our body absorbs the nutrients that come with food. First of all, these are fats and fat-soluble vitamins.
Several factors contribute to bile deficiency at once, sometimes they are present in combination. One of them is excess estrogen. What causes surplus? For example, from taking oral contraceptives or other hormonal drugs. In particular, this is why it is in women that cholelithiasis is much more common.
A nutritionist named ways to prevent gallstone disease
Excess estrogen is also formed with a large amount of excess weight. After all, adipose tissue is also capable of synthesizing hormones. Therefore, it is important to control weight at any age.
Gallstones: Symptoms and foods to avoid
High levels of the stress hormone, cortisol, also reduce bile production. So if you don't want stones to form, try to minimize the amount of stress in your life. 
Natalya Liberanskaya Health Endocrinologist