I enjoy going to the beach, the mountains, parks, and even the Venezuelan plains with my husband and my 3- and 5-year-old children. I’m fascinated by a black coffee in the morning, having a checklist, and achieving daily goals. Order is key in my life, and I love learning from my patients every day. To maintain my title as a Board Certified Holistic Nutritionist in the USA, I must update my knowledge annually, so I stay informed about the latest advancements to provide the best tools to the NutriWhite community.
Nutritionist for weight loss
You’ll receive a cutting-edge approach with the best strategies to achieve your goals and improve your quality of life in the long run.
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How can a nutritionist help you lose weight?
Start losing weight with
our services

With this plan, you receive the most tailored evaluation, treatment, and support based on your needs.

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Encuentra tu nutricionista ideal para bajar de peso
- Gastrointestinal Disorders
- Pregnancy and Breastfeeding
- Weight Management
- Online and In-Person Consultations in Caracas, Venezuela


MSc. Mariana White
Before your first consultation, you fill out a NutriWhite nutritional history and questionnaire. This provides key information about you, helping me understand you better and set up a pre-established action plan. Once in the consultation, I listen to your goals, and together we work with NutriWhite tools to achieve the proposed health objectives.
- Board Certified Holistic Nutritionist
- Bachelor’s Degree in Nutrition and Dietetics, ranked 5/31 in the class - Central University of Venezuela
- Diploma in Positive Psychology - Metropolitan UniversityMaster’s in Holistic Nutrition, Graduate Certificate in Complementary Alternative Medicine, Graduate Certificate in Wellness Coaching, Graduate Certificate in Anatomy and Physiology, graduated with Honors - American College of Healthcare Sciences
- National Association of Nutritional Professionals, www.nanp.org
- Tier 1 Certified by Gluten-Free Society, www.glutenfreesociety.org
- Member of the Nutritional Intervention League Against Autism, www.linca.org
- Member of the College of Nutritionists and Dietitians of Venezuela, www.colegiodenutricionistas.com.ve


- Autism Spectrum Disorders (ASD)
- Allergies and Immunological Disorders
- Gastrointestinal Disorders
- Autoimmune Diseases
- Online Consultations


MSc. Andreina White
I'm a mom and wife. Energetic. A natural motivator. Active. I love nature, people, and community. I'm deeply dedicated to my inner growth journey, continuously discovering more about my vulnerability and sensitivity. I live in California, and we love exploring it by camping. We enjoy cycling and kitesurfing. I'm driven by the desire to leave something meaningful in the world, be an example of a legacy of service, and connect with others.
My mission is to provide tools to help transform lives. In addition to offering consultations, I work daily on the growth of NutriWhite as a company. Alongside my mom and sister, I work hard to spread the message of immunonutrition worldwide and help people believe in and adopt this wonderful philosophy in their lives.
Connecting with you. Understanding and defining your needs and goals. By learning about your story and background, I aim to provide you with the best and most effective tools from a holistic perspective.
Co-Founder and Director of NutriWhite:
- Bachelor’s Degree in Nutrition and Dietetics
School of Nutrition and Dietetics, Department of Medicine, Central University of Venezuela. - Master’s Degree in Immunology
University of Barcelona, Department of Biology. - Master’s Degree in Nutrition and Metabolism
University of Barcelona, Department of Pharmaceutical Sciences.


Testimonials and reviews

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Frequently asked questions
about weight loss
What is the best diet for weight loss?
The «best» diet is the one that works for you based on your metabolism, genes, and lifestyle.
It could be an OkNutriWhite, Paleo, Ketogenic, Carnivore, or Vegan diet. It's not the same for everyone, which is why personalizing your diet is so important.
Weight loss and maintaining a healthy weight depend on multiple factors such as:
- Genetic predisposition.
- Eating habits.
- Age.
- Hormone levels such as thyroid, insulin, testosterone, etc.
- Gut microbiome.
- Physical activity you engage in.
- Presence of infections.
- Lifestyle.
At NutriWhite, we recommend conducting an evaluation to properly personalize your diet through the 3R Immunonutrition Protocol.
- Sugar: added sugar is found in many processed products and can contribute to increased body fat. Read the labels and choose alternatives with no added sugar.
- Gluten: this is a protein present in all cereals and flours that can be hard to digest, causes inflammation, and disrupts your metabolism.
- Cow's dairy: these dairy products contain casein, a protein that, like gluten, can be hard to digest, causes inflammation, and disrupts your metabolism.
- Fast foods: they are often highly processed foods, high in sugars, refined flours, and trans fats, which not only provide empty calories but also inflame your gut, spike your insulin, and make weight loss more difficult.
What should you eat for breakfast to lose weight?
The best way to start your day is with a healthy, high-protein, low-carb breakfast.
This prevents insulin spikes and helps keep cravings for carbs and «enemy foods» under control throughout the day.
Avoiding insulin spikes not only supports fat loss but also allows you to gain muscle mass if you exercise.
What should you eat before bed to avoid gaining weight?
This last meal of the day should be high in protein and low in carbohydrates, complemented with vegetables you enjoy to create a fiber-rich and satisfying meal.
Before going to bed, it’s important to have completed your digestion process, so we recommend having dinner at least three hours beforehand.
What would be an example of a healthy menu?
- Breakfast: Vegetable omelet with a slice of gluten-free whole-grain bread and avocado.
- Lunch: Oven-baked wild salmon with lemon, air-fried sweet potato chips, and a mixed salad with arugula, cucumber, and red onion.
- Snack (mid-morning or afternoon): pre-soaked and toasted nuts.
- Dinner: Zucchini cream soup with grilled chicken.
How to lose weight quickly?
While it is possible to lose weight quickly through strict or «miracle diets», weight-loss medications, or surgeries, in most cases, the lost weight is regained, and these methods can even lead to health problems.
At NutriWhite, we recommend focusing on understanding what is affecting your metabolism and developing a plan that prioritizes gradual changes in your eating habits, such as improving food quality and reducing the consumption of ultra-processed products.
This will not only help you lose weight effectively but also provide lasting results without putting your health at risk.
How can NutriWhite help me lose weight?
Many weight-loss diets focus solely on counting calories to promote weight reduction.
At NutriWhite, we understand that it's not just about how many calories you consume, but how your body processes food.
Even if a food is low in calories, if it causes inflammation, it can negatively impact your metabolism, making it harder to maintain a healthy weight.
Our dietitian-nutritionists work to identify the foods that best suit your body, helping you lose weight in a healthy and effective way.
Why choose NutriWhite?
At NutriWhite, we help you build a lifestyle with healthy habits.
You will learn to understand your body and identify what causes inflammation, allowing you to achieve long-term goals such as losing weight, transforming your life, «Regaining» your health, and finally saying goodbye to illness!
Llegamos a Nutriwhite después de muchas preocupaciones por la salud de nuestro hijo y a pesar del muy poco tiempo que llevamos de tratamiento con nuestro hijo, ya hemos visto muy buenos avances en él. Son muy profesionales, me gusta mucho la ayuda que brindan y sobre todo la valiosa información que comparten para mantenernos saludables y hacernos muy conscientes del impacto que tiene una buena alimentación en nuestras vidas y en nuestro día a día. Un agradecimiento especial a la nutricionista Fabiana y al Doctor Marcano por ayudarnos es de esta manera.
I’m truly very satisfied and grateful to both Dr. Marcano and Lic. Natalia. They are extremely professional and attentive in answering every question to help my son Luciano keep progressing. Thank you. :)
Since my son Marlon came to Nutriwhite, I can say that the person he is today is completely different. He arrived with no vocabulary, extreme stereotypies, bleeding eczema, extreme food selectivity, and significant abdominal bloating. I’m getting my son back. Nothing has been easy, but hearing my son call me “mom” makes it all worth it. Thank you, Nutriwhite team.
«Después de tener 3 meses estancada con mi peso, haciendo muchas cosas sin ver cambios, logré bajar casi 4 kilos en un mes con NutriWhite. Y no solamente son los 4 kilos que bajé porque esa ya no es mi prioridad, es lo increíblemente bien que me he sentido. Yo era una persona con muchísimos cambios de humor, había días que no me quería parar de la cama y últimamente me siento una persona alegre, feliz, con energía, demasiado motivada a hacer todo»
“I’ve been applying it for a month and a half and I’m quite happy. I feel energized. I had constipation issues and I believe I’m overcoming them naturally through nutrition. I’m very happy because I used to rely heavily on pills or medications to help me go to the bathroom, and I’m no longer taking them. Overall, I also feel lighter and no longer feel bloated after eating. In general, I’m very satisfied. I started off very motivated and now I not only remain highly motivated but also more confident in maintaining it.”
“I visited many doctors. I had a lot of gas, cramps, diarrhea... and none of the doctors gave me a real solution. I heard about the people at NutriWhite and got really excited because what they were saying truly reflected what I was feeling. They ordered a series of tests and gave me a diet with zero grains and zero dairy. I began to feel better, started to lose my fear of food, and felt supported because they follow up on how you’re feeling and how you’re doing… and something I never thought was related—the joint pain—it’s unbelievable. Now I can open and close my fingers without pain or discomfort. Plus, I’ve gained weight—from 52 kilos, I’ve put on weight. I feel so much better and very grateful to the people at NutriWhite. Honestly, I think they’ve done an incredible job, and I’ve also been a very committed patient.”
“I can’t even believe how good I feel. I no longer have any gas or stomach pain when I eat. I used to have trouble sleeping, waking up many times for no reason, and now I only wake up once. My hair was extremely dry and would fall out just from brushing it, and now it no longer falls out. I also used to feel cold even in the heat. I no longer have cold feet or hands. On top of that, I’ve lost a lot of weight... There have been so many changes.”
“I’ve noticed so many changes since completely eliminating gluten, dairy, and refined sugar. The first and most noticeable change was the reduction in abdominal bloating. Second, I used to sneeze every single day of my life, and I simply stopped sneezing and no longer have a stuffy nose. Third, although I’ve lost weight, what I’ve enjoyed most about the 3R Protocol is that for the first time, I stopped counting calories and just focused on the nutrients entering my body. On top of that, I’ve felt extremely energetic. I’m sleeping much better, and it was all simply due to changes in my diet.”
“I love gluten, but unfortunately it harms me a lot. So, I decided to take on a challenge. I go between 20 to 40 days—depending on how much willpower I have—without eating gluten, and the results are incredible. When I eat gluten, within a minute, I have an allergic reaction; my mouth and eyes start itching... So, I like gluten, but I know it’s bad for me. My plan is to become a gluten-free person and follow a completely healthy diet.”
“In less than 3–4 weeks, just by changing my diet, my thyroid levels improved significantly. My thyroid was at level 9 and dropped to 3.3. I’m super happy and I now realize how food and a healthy lifestyle can truly support your he“It’s been amazing how much my health has improved. I had been dealing with various issues for a long time—headaches, dizziness, bloating—things I lived with daily. I had seen many doctors, and after not finding a solution through conventional medicine, a friend told me about NutriWhite. It has changed my life.”alth.”
“It’s been amazing how much my health has improved. I had been dealing with various discomforts for a long time—headaches, dizziness, bloating—things I lived with on a daily basis. I had visited many doctors, and after not finding a solution through conventional medicine, a friend told me about NutriWhite. It has changed my life.”
“For me, it has been a positive, healing experience—not only for my body but also internally—because all these gastrointestinal issues end up affecting your emotional well-being, as it’s very frustrating. Having proper guidance on how I should nourish myself is something truly beautiful. Re-educating myself in that aspect has been very positive, not just for me but also for my family.”
“Anthony’s progress has been very good. We’re very happy because he used to speak very little and now he’s talking more, expressing himself more—even singing. We’ve seen very positive changes in less than a month.”
“It’s been a tough journey, but it’s been worth it. The first results we noticed were the improvements in our family’s quality of life due to all the progress he made. His sleep issues and recurrent infections are now under control. He’s also improved his attention span and his initiative to communicate and interact. We’re very happy with these results.”
“James is more connected, more alert. He’s progressing quickly in speech therapy. He started attending a regular school and is doing really well. He knows the entire ABC. He has improved a lot. I’m extremely happy and surprised by how fast it’s all happened."
Becoming a Nutriwhite patient has been one of the best decisions I’ve ever made. I’m infinitely grateful to the entire team of professionals for the quality of their service and for how they’ve transformed my life.
I have no words to express the outstanding level, knowledge, and professionalism of the Nutriwhite Team! They changed my life, and I finally found out which foods weren’t good for me! I 100% recommend them!
The consultation was truly very good, with great attentiveness. I was satisfied because they make sure you understand the process and feel supported throughout it.
I’ve been part of NutriWhite for several years. They have supported me through various stages of my life, including my pregnancy and now postpartum. For me, having the guidance of each person who is part of NutriWhite has been essential.
I’m very happy with NutriWhite. I went through my pregnancy with them and I’m now going through my postpartum as well. The progress has been incredible, and the mental and physical improvement is beyond words. I recommend them with my eyes closed.
The interview with Mariana was truly comprehensive, and one of the things I find very special is the motivational support through chat—we get answers and information in a short amount of time. Congratulations! Thank you so much.
My skin allergies never came back, and managing my food sensitivities has been a complete success.
To me, Vero is simply unbeatable—she’s very approachable and answers all my doubts and questions. I’m very happy with her; she addresses every symptom with precise guidance and the right supplements, and her attitude keeps me motivated to continue.
I really liked the consultation because it focuses on addressing the health issue promptly and adapts to my preferences—for example, they take into account the foods I like to eat.
Carol explains things wonderfully; she is very professional and at the same time very friendly. She knows her field and speaks with expertise. I loved being her patient and I will continue to be for future consultations.
Very satisfied with the care from Dr. Julie Verzura and nutritionist Andrea. I love the dietary plan, the ease of getting the recommended vitamins and other supplements. Overall, super happy with NutriWhite.
Each day I feel better and see that I can keep learning to make recipes with foods that help me feel good.
The whole experience is unbeatable! They truly exceeded my expectations. I really appreciate the educational aspect of the consultation (explaining to the patient what gut health is about, etc.). All the logistics and organization before, during, and after the consultations have been incredible!
