Yes, it's all about the hormones and ingredients of the beer. It's a shame that many people consider this drink safe. The husband, as he faced the problem of potency, the doctor advised him to quit smoking and from beer too. To improve, drank effex tribulus, parsley and pumpkin seeds.
The question "Why does beer decrease potency and grow belly?" is invalid. It is correct to ask "Is it true that beer decreases potency and grows belly?" And the answer is no, this is another myth.
It so happened that in the CIS people live in purely extremes - you need to either "drink in garages with friends" every day, or be an adherent of "Zhdanovites" and believe in that that after alcohol "dead brain cells come out with urine," and beer "turns you into a woman with saggy breasts." Well, this is nonsense.
But now let's get to the point. The main arguments against beer are its high calorie content and the "hormonal effect of estrogen-like substances" contained in hops. Let's try to deal with these statements.
"Beer belly". This is the first myth about beer because it has a relatively low calorie content (40 kcal / 100 ml). So milk contains 42 kcal. In kefir, on average, 53 kcal. In juices - 54 kcal. When consumed in moderation, beer cannot cause any obesity. Moreover, the term "beer belly" itself is not used in the medical literature and has no scientific analogues. This phrase is an invention of ardent anti-alcohol fighters. The beer belly issue itself has been studied by the European Advanced Study on Cancer and Nutrition (EPIC). (7876 men and 12,749 women were examined). Research results have shown that although excessive beer consumption may lead to weight gain and body volume (this risk was found in 17% of men who consume more than a liter of beer per day), there is no specific "beer" form of obesity. The main reason for weight gain when drinking beer can only be fatty high-calorie snacks consumed with it. However, no one forbids you to eat something "light", quietly drinking the contents of your glass :)
Decreased potency, breast augmentation, feminization of the body. This is the second popular myth based on the fear of "estrogen-like substances" in hops. So, let's begin. The so-called "female hormones". First, estrogen-like hormones are secreted by the male body itself. This is a normal biological process. Secondly, phytoestrogens are found not only in hops. Moreover, there are much less of them in hops than in legumes, soybeans, nuts (you can read the scientific findings on this topic here www.ncbi.nlm.nih.gov) (plus attach a picture) (bitter beers have even less phytoestrogens, than strong coffee). Third, phytoestrogens cannot replace natural human hormones and are, on average, more than a hundred times weaker in action.
Conclusion - believe less in myths, refer to real scientific research, not horror stories. And most importantly - use, but do not abuse. Happy :)