During the 60s, a large number of studies indicated that the idea that estrogen therapy could alleviate the symptoms of menopause. In a bestseller called Feminine Forever, a famous Brooklyn gynecologist even claimed that menopause was a disease rather than a natural state associated with aging. Soon, an increasing number of women of a certain age began taking supplemental estrogen as if they were candy, exactly as is done today with Vitamin D in some "healthy" settings. All with the painful logic that exogenously replacing the hormones that your body stops secreting or that is deficient is the correct way. The treatment, known as hormone replacement therapy, thus became one of the most popular medical treatments in America, supported and advocated by all the leading medical associations.
In 2001, 15 million women in the US were on HRT, including 5 million older women.
But then… In 1998 (so after 20-30 years), a major clinical study concluded that estrogen therapy unfortunately increased the likelihood that women with heart disease could suffer a second heart attack. This was followed by another study in 2002 which concluded that hormone replacement therapy put postmenopausal women at greater risk for heart disease, stroke, blood clots, breast cancer, and even dementia. It suddenly became painfully clear that HRT was very dangerous!
Gary Taubes, the great science journalist wrote in the New York Times Magazine in 2007: “The question of how many women may have died prematurely or suffered stroke or breast cancer because they were taking a pill their doctors prescribed to protect them from heart disease remains unanswered. A reasonable estimate would be in the tens of thousands ".
This story of hormone replacement therapy, which Harvard epidemiologist Jeffrey Avorn called the "estrogen debacle" is a prime example of how even the most widely held medical beliefs can turn out to be wrong. History is filled with biased studies, overconfident clinicians, right up to hubris, and researchers who have failed to think critically.
Most alarming, however, is the fact that the medical community is currently unaware of another impending public health disaster of epic proportions, which will affect a large swath of the population. In an attempt to curb chronic disease, surely well-meaning researchers are promoting vitamin D, a substance that, according to recent molecular modeling research, can act as an immunosuppressive steroid. Studies that misinterpret the reason for vitamin D deficiency in chronic disease patients have been hailed by the media as big news to be disclosed on a daily basis, even in the dark times of COVID-19, and form the basis of massive advertising campaigns that, along with ill-informed recommendations from doctors and researchers, enthusiastic communications on social media etc ... They are creating a perfect storm of misunderstandings and bad advice that will lead, within 4-5 years, to a health disaster that will also involve healthy individuals who, with the hope to always stay in shape, they take these pills obsessively and compulsively 365/365.

Matthew –
Overtime
A beautiful book that changed everything I knew about Vitamin D, giving me a clear vision of how things really are. A rich, dense essay that expresses complex concepts in a simple and passionate way. Full of easy-to-use and economical practical suggestions and very rich in bibliographical references that make the work truly consistent. This essay is beautiful because it sheds light on many aspects of anti-aging in general. I consider it a real masterpiece, a pillar for anyone who cares about their health. Eng. Rossiello has surpassed himself and will once again be the driving force for all the experts for the next 5 years with his revelations, as has already happened with the debut book Insomnia. Highly recommended!
Francesco –
Surprising, revolutionary
I think it is the book that best exposes and clarifies one of the most important issues of the moment, as well as the object of uncertain and debated interpretation, given the weight and health role it plays.
The reading, very fluent, is characterized by an alternation of technical and scientific parts and simpler parts in order to connect the key points of the speech, make the topic understandable and satisfy demanding and non-demanding readers ...
The book is also complete with scientific references to support the claims contained ...
Who wants to know everything and have all the answers on this precious hormone,
Those who really want to regain their health and / or optimize it and not be fooled by erroneous medical beliefs, I invite you to read this book.
Caimano Gaetano –
Recommended for everyone, especially doctors and nutritionists
Don't be scared by the price, this book is worth every single euro spent, even more. I met the blog Evolevolly two years ago, when I started the transition from a vegan diet to an evolutionary diet and I can say that it has helped me a lot in improving my health (both by eliminating non-vitamin D supplementation and by using biohacking tools. and respect for circadian rhythms, described in detail in Angelo's blog and books. The text describes everything about the biological mechanisms related to the formation of non-vitamin D in the body and explains why it should not be integrated systematically as proposed by some doctors and nutritionists, referring to scientific studies and papers. It also indicates how to do the correct blood tests to detect any deficiencies in vitamin D (which unfortunately almost no doctor knows). Do not be fooled by the fact that the book was written by an engineer, given that the knowledge of a topic is not given by the qualification but by the person's ability to succeed to understand and dissect a certain topic. Highly recommended
Game Changer (verified owner) –
Highly recommended book, accompanied by an avalanche of bibliographical references, which takes you step by step to understand the importance of a lifestyle of a certain type in relation not only to the (self) production of vitamin D but also to a myriad of others physiological processes and which completely dismantles the approach based on integration.
Book that makes you think a lot and that should be read by all those people who have an approach to health of the type "do you have this problem? Take this product ”.
Walter Carraro (verified owner) –
It looks like a brick, given the color, but the reading flows lightly even for those who don't chew medicine at breakfast. A pioneering treatise with an impressive research work woven by the authors in an exemplary and complete way. Reading this essay projects you into the future with a full awareness of human evolution.
Alessio Todisco (verified owner) –
More than a book, this is a manual with a very high technical / scientific content that should be studied by anyone who has to do, for work or passion, with health (first of all doctors).
The information contained therein, all supported by authoritative scientific studies, is difficult to find by most people and will radically change your certainties, especially, but not limited to, what you thought you knew about vitamin D.
The truth is always revolutionary and I thank Angelo for the immense work he has done.
I just regret not buying it sooner.
Rosa –
When I decided to start reading this book, I took a deep breath thinking that I would have to put all my effort into getting the job done. Nothing could be more wrong, the reading went off smoothly, as compelling as in a novel. Of course, in some points it was necessary to go back to it with greater attention, in others there was still a bit of fog, but overall the reading was pleasant and above all very informative, every doubt was unraveled hand in hand and, when I was faced with a question, a little further on here comes the answer.
Now it is clear to me the reasons why supplementation with vitamin D is not only useless but also very harmful.
I thank Angelo Rossiello for completing this immense collection of information that has no equal.
I highly recommend reading it to anyone who wants to be responsible for their health.
Camilla –
Scientific dissemination is wonderful when it reaches every person in a simple, comprehensive and functional way ... everyone should read this well-written book, full of invaluable advice to put into practice and the scientific explanation for each one ... formidable and very useful book ... I highly recommend it to everyone !!!
Alessandro –
I bought it out of curiosity, because I had been in Paleo for a few years and supplemented D, and I wanted to understand if and why I was making a mistake (BMI 22,7).
The book is full of information, sometimes difficult to acquire if you don't have a minimum of competence, but certainly illuminating.
The consequence of the reading was the immediate suspension of hormone D supplementation (in November) and a more rigorous adoption of a more natural lifestyle: lights, earthing, sleep, exposure to the sun and cold.
Consequence: after 8 months (in July) D hormone deposition at 51 and active at 69, only with the sun and targeted nutrition.
Federico (verified owner) –
I was so thirsty for this vitamin D information that I devoured the book in less than two days. Following the blog and the telegram channel I was already a little prepared for the topic, but I was very impressed, giving me a clear view of the mistakes I made by wildly integrating this vitamin, blindly following some "gurus".
I'm honest, in my ignorance, I struggled a lot in the first chapters which I found very technical and which I had to re-read more carefully. I agree with whoever wrote "more than a book this is a manual with a very high technical/scientific content that should be studied by anyone".
It is full of easy-to-use practical suggestions and many general anti-aging tips.
Highly recommended for anyone who wants to take care of their health!
ISABELLA DI FRANCESCO –
Compliments! The book is very well written in form, but above all illuminating in content!
Recommended to all those who think for themselves, who are not satisfied, and who want to feel good, at any age!
Personally, by following the advice given in the book I have changed my lifestyle beyond buying phototherapy lamp and I feel much better. Without Vitamin D supplements
Thanks to Angelo who made his studies available, making them a valuable collection of information and advice for everyone.
Super recommended
Massimo Brugnoli (verified owner) –
My name is Massimo Brugnoli and I am 49 years old.
Since the very first years of my life I have suffered from eczema, especially on my hands, and very seriously especially in the winter months.
Sometimes the situation was really difficult: cuts, itching (sometimes very strong), up to actual lesions. Once I even ended up in hospital with an abscess on my finger.
At a certain point I started following a paleo diet (although with various variations: never 100%), and this had given me a certain improvement.
But the real turning point came when I started following Angelo Rossiello and Alessio Angeleri, and reading their books (including “Vitamina D”)
And last winter, for the first time, I didn't have any eczema problems.
And without any specific medication or ointment.
In summary, the diet is substantially the same (including mistakes), but:
1) I stopped taking vitamin D supplements. They gave me relief, but I realized that they extinguished the symptom and didn't solve the cause (not much different from a cortisone cream, in short)
2) In all seasons and in all weathers, in the early morning I go out for at least half an hour to walk and expose myself to natural light
3) I get plenty of sun from May until late November in order to stock up on vitamin D naturally for the winter
4) I sunbathe all year round, even in winter. In this way, by standing shirtless for a few minutes in the park near my house, I also take advantage of the benefits of exposure to the cold.
5) During winter season I take fermented cod liver oil and ghee butter
6) I do earthing all year round, as soon as possible (even in winter).