FUNCTIONALNUTRITION –––&LIFESTYLE
supporting women through every stage of life.
From puberty to the reproductive years, perimenopause, and postmenopause, each phase of a woman’s life brings unique biological and lifestyle changes. These transitions require specific nutritional strategies to support well-being and vitality.
From puberty to the reproductive years, perimenopause, and postmenopause, each phase of a woman’s life brings unique biological and lifestyle changes. These transitions require specific nutritional strategies to support well-being and vitality.
FUNCTIONALNUTRITION –––&LIFESTYLE
supporting women through every stage of life.


Many women face challenges like weight management, thinning hair, bloating, frequent headaches, digestive issues, fatigue, insomnia, intense PMS, and difficulties with fertility. While these concerns are common, they are often interconnected and may result from imbalances in nutrition and lifestyle habits.
There’s no need to settle for discomfort or low energy as a part of daily life. Functional nutrition takes a deeper look at the root causes of these imbalances and offers a personalized approach to address them. By combining targeted nutritional adjustments with sustainable lifestyle changes, you can take control of your health and feel your best.
“We all have the power to create a life free from discomfort through simple, thoughtful choices. This journey is unique to each women—no rigid standards or restrictive diets. When the process is enjoyable, the results become sustainable.”
– Isabel Jereissati, Functional Nutritionist
Many women experience challenges such as difficulty managing weight, hair thinning, bloating, frequent headaches, irregular digestion, fatigue, insomnia, intense PMS, and challenges with fertility. These issues, while common, are often interconnected and may stem from imbalances in nutrition and lifestyle habits.
There’s no need to settle for discomfort or low energy. Functional nutrition focuses on understanding the root causes of these imbalances and helps build an individualized approach to address them. By pairing targeted nutritional changes with sustainable lifestyle adjustments, you can regain control of your health and feel your best.
“We all have the power to create a life free from discomfort through simple, thoughtful choices. This journey is unique to each women—no rigid standards or restrictive diets. When the process is enjoyable, the results become sustainable.”
– Isabel Jereissati, Functional Nutritionist


The Change
Method
Digestive and hormonal health are cornerstones of well-being for women. These systems are deeply connected, influencing physical and emotional balance, daily energy, and long-term health. The Change Method bridges these connections to create a personalized plan that promotes balance and vitality.
Discover the 7 pillars of women's health.
Hover to learn more.
HOW TO PRACTICEAPPOINTMENT



THE CHANGE METHOD
HOW TO PRACTICE
With a combination of functional nutrition, lifestyle adjustments, and continuous support, a personalized guide is developed for you to evolve over time. The process goes through three phases, starting with essential changes to the foundation of your diet. Next, it’s time to delve into your health history, current concerns, and the woman’s stage of life. This phase also includes strategies to boost energy and accelerate results, ensuring motivation remains high. The final phase is dedicated to consolidating the transformations.
The Change method is applied within a 4 to 6-month follow-up program, fully personalized and structured step-by-step to help you achieve your health and body goals.
The 3 phases
READ MOREAPPOINTMENT

THE CHANGE METHOD
IN PRACTICE
With a combination of functional nutrition, lifestyle adjustments, and continuous support, a personalized guide is developed for you to evolve over time. The process goes through three phases, starting with essential changes to the foundation of your diet. Next, it’s time to delve into your health history, current concerns, and the woman’s stage of life. This phase also includes strategies to boost energy and accelerate results, ensuring motivation remains high. The final phase is dedicated to consolidating the transformations.
The Change method is applied within a 4 to 6-month follow-up program, fully personalized and structured step-by-step to help you achieve your health and body goals.
The 3 phases
READ MOREAPPOINTMENT
ARTICLES
REAL RESULTS
"She taught me to pay more attention to my diet without creating difficulties that can make a diet impossible. She also taught me not to be swayed by various vitamins that promise everything, as their excess does more harm than good to the body.""
L.L.S. - Brazil - 2018
"Living in the U.S., she was able to adapt her recommendations to American habits. She has extensive knowledge of American products. Isabel's approach is simple, dynamic, and enjoyable to follow at home.""
M.E.- New York - 2019
"My blood test results were very abnormal. Through her guidance on dietary re-education, lifestyle changes, and behavioral adjustments, everything was resolved permanently. And as a 'bonus,' I lost a few extra pounds.”
S.B.F. - Portugal - 2018
“I changed my diet once again, but more than that: I changed my lifestyle, my cookware, my deodorant, my sleep habits - all under her guidance.”
M.D.R - Brazil - 2019
"I started with Bel during a very apprehensive phase of my life - the beginning of my fertility treatment. I’m now seven and a half months pregnant, and I see that this support was a key factor in my success."”
F.C.- Brazil - 2020
"The addition of spices to fruits, the daily consumption of vegetables, and having five colors on my plate promote a highly positive organic change! And I’m 72 years old! Thank you, Isabel!"
D.S. - Brazil - 2023
"I managed to control my blood sugar levels. The cramps and pain have significantly decreased. I learned how to take care of my diet and exercise, especially in my case as a diabetic."
M.W. - Brazil - 2024
REAL RESULTS
"She taught me to pay more attention to my diet without creating difficulties that can make a diet impossible. She also taught me not to be swayed by various vitamins that promise everything, as their excess does more harm than good to the body.""
L.L.S. - Brazil - 2018
"Living in the U.S., she was able to adapt her recommendations to American habits. She has extensive knowledge of American products. Isabel's approach is simple, dynamic, and enjoyable to follow at home.""
M.E.- New York - 2019
"My blood test results were very abnormal. Through her guidance on dietary re-education, lifestyle changes, and behavioral adjustments, everything was resolved permanently. And as a 'bonus,' I lost a few extra pounds.”
S.B.F. - Portugal - 2018
“I changed my diet once again, but more than that: I changed my lifestyle, my cookware, my deodorant, my sleep habits - all under her guidance.”
M.D.R - Brazil - 2019
"I started with Bel during a very apprehensive phase of my life - the beginning of my fertility treatment. I’m now seven and a half months pregnant, and I see that this support was a key factor in my success."”
F.C.- Brazil - 2020
"The addition of spices to fruits, the daily consumption of vegetables, and having five colors on my plate promote a highly positive organic change! And I’m 72 years old! Thank you, Isabel!"
D.S. - Brazil - 2023
"I managed to control my blood sugar levels. The cramps and pain have significantly decreased. I learned how to take care of my diet and exercise, especially in my case as a diabetic."
M.W. - Brazil - 2024
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Register your email and receive “True Wellness” content every month, with a mix of recent research, recipes with therapeutic properties and even the latest news that is really worth it in the well-being market.

HEALTHPODCAST
Isabel Jereissai joined thenutritionist Karissa Kilsonto simplify your healthyroutine in “Health without rush”

CHANGEEBOOK
Download here “How to modulatethe hormones through nutrition”

ONLINECOURSES
Discover how to improve yourhealth through nutritionand lifestyle. Coming soon!

HEALTHPODCAST
Isabel Jereissai joined thenutritionist Karissa Kilsonto simplify your healthyroutine in “Health without rush”

CHANGEEBOOK
Get Healthy Eating Guide toNurture and Balance Your Menstrual Cycle.
