A little bit about me
I’m Wendy Nickell, a Las Vegas-based Board Certified Functional Nutritionist specializing in functional nutrition and natural health. I’ve spent more than 26 years helping people understand what their bodies are asking for and how to support their health in practical, sustainable ways.
I look at symptoms, health history, lifestyle patterns, lab work, and individual biochemistry to create recommendations that fit each person’s goals and level of commitment. I also use clinician-level research tools that provide current, evidence-based information to help identify underlying imbalances and guide clear, effective next steps.
My story
I sat on that exam table in my twenties, staring at a closed door.
I’d gone to a dermatologist for a stubborn case of severe acne. He gave me medication and I trusted him, because that’s what you do. But four months later, the acne was still there and the side effects were new problem all their own. So I asked him a simple question. What else can we try?
He looked at me and said, “This is what we do.” Then he walked out.
I just sat there. No plan. No next step. Nobody willing to dig any deeper than the prescription pad.
That’s the moment I decided I’d have to become my own detective. If nobody else was going to investigate what was really going on in my body, I would. I started spending my free time in libraries, reading everything I could get my hands on. I also made the rounds to every health food store in the city. There were seven of them at the time, and I picked the brain of every herbalist I could find.
Turns out that wasn’t quite enough. My body needed more than herbs and good intentions.
I dealt with ADHD and hyperthyroid in my formative years (undiagnosed), anorexia nervosa as a young adult, debilitating menses pain, then peri and menopause symptoms. Every single one of those experiences taught me something I now use to help my clients. I found my way back to health, not by luck, but by learning to read my own body like a case file. These days, I’m in a genuinely good place, and I’m a better practitioner for everything I’ve been through.
What started as me trying to save myself turned into something I truly love. Library research only gets you so far, so I went and got real training. I became a Certified Functional Health Coach and a Functional Nutrition Therapy Practitioner.
That was over 26 years ago, and I’m still on the case.
These days I work with women who see themselves in my story. Women who are tired of hearing “this is just what we do” and want someone to actually look for the root cause. I build personalized nutrition plans, whether that’s keto, paleo-keto, AIP, or plant-based anti-inflammatory, depending on what your body is trying to tell me.
I learned the hard way that healing rarely shows up in a pill bottle. It shows up when you finally understand your own body well enough to advocate for it. That’s the work I do now, every single day. I am a Health Detective.
My professional training
Functional Nutrition Therapy Practitioner
Certified Natural Health Practitioner
Board Certified Master Herbalist
Certified Functional Supplement Specialist
Certified Genetic Nutrition Specialist
Institute of Functional Medicine training
Cornell University Plant-Based Nutrition Certificate
I continue my education so I can bring the most current nutrition science to my clients. My background allows me to evaluate lab work, review supplements and medications, identify nutrient depletion patterns, and develop nutrition strategies based on each individual’s unique needs.
How I work
I spend the time needed to help my clients understand why certain changes matter and how those changes support their body. I focus on biochemical individuality because there is no single diet or method that works for everyone. My goal is to help clients make steady progress and learn how to support their health for life.
Many clients start noticing improvements quickly because their plan is designed specifically for their needs. I teach people how to work with their bodies, not against them, so they can experience better energy, improved digestion, clearer thinking, and more day to day balance.
A message from me
I want to be your body’s advocate.
I know how frustrating it is to feel like you’re doing everything right and still not getting answers. My hope is that when we work together, you’ll leave each appointment understanding your body a little better and feeling confident about the next steps.
FAQ: Functional Nutrition Questions Answered
If you feel like you’ve tried every diet, seen every specialist, and still feel stuck despite being told your labs are “normal,” you are not alone.
Many of the people I work with are frustrated, exhausted, and quietly wondering if this is just how they are going to feel from now on. It is not.
Below, I’ve put together answers to the most common functional nutrition questions I hear, covering everything from bloodwork analysis to stubborn weight loss and hormone imbalance. My goal is to give you clarity so you can decide whether this approach feels right for you.
About Functional Nutrition
What is functional nutrition and how does it work?
Functional nutrition looks for the underlying patterns driving your symptoms instead of chasing them one at a time. I review your history, lifestyle, stress load, and lab work to understand how your body is functioning as a whole. From there, we build a plan that supports balance at the root level so your body can respond more naturally. The goal is not temporary control. The goal is sustainable improvement.
What does “root cause” really mean in functional nutrition?
Root cause means asking why something is happening instead of only reacting to what is visible. If you are tired, inflamed, gaining weight, or struggling with hormones, there is usually a deeper physiological pattern behind it. We investigate that pattern so we are not simply managing symptoms.
How is functional nutrition different from traditional medicine?
Traditional medicine is often excellent at diagnosing and treating disease. Functional nutrition focuses on identifying imbalances before they reach that stage. It looks at optimal function rather than crisis thresholds. This work complements your medical care rather than replacing it.
How is working with a functional nutrition practitioner different from seeing a regular nutritionist?
Many nutrition programs focus primarily on food plans. My approach includes food, but it also examines blood chemistry, stress response, hormone patterns, inflammation, and metabolic health. Instead of asking you to try harder, we look at why your body may not be responding.
Is functional nutrition evidence based?
Yes. I work with established lab markers, physiology, and nutrition science. The difference is that I interpret patterns through an optimal lens, looking for early signs of imbalance rather than waiting for extreme abnormalities.
What symptoms are a sign that I might need functional nutrition support?
Persistent fatigue, stubborn weight gain, hormone imbalance, brain fog, digestive discomfort, blood sugar instability, and feeling “off” despite being told everything looks normal are common indicators. If you feel like your body is not responding the way it used to, that is worth investigating.
Weight, Hormones, and Metabolism
Why can’t I lose weight even though I am eating healthy?
If you are eating well and still not seeing progress, the issue is often metabolic rather than behavioral. Stress hormones, insulin resistance, thyroid patterns, and inflammation can all make weight loss feel impossible. Addressing those deeper factors changes the conversation.
Why does my body resist weight loss no matter what I try?
When the body perceives stress, it protects itself. Chronic dieting, poor sleep, high cortisol, and blood sugar instability can signal your body to hold on rather than release. The solution is not more restriction. It is restoring metabolic balance.
Can hormone imbalance make it impossible to lose weight?
Yes. Thyroid patterns, cortisol shifts, and insulin signaling all influence fat storage and energy regulation. When those systems are imbalanced, weight can feel stubborn regardless of effort.
Why is weight loss harder after 40?
Hormonal transitions, accumulated stress, and years of metabolic strain can reduce flexibility. The strategy must shift from calorie cutting to system support.
Can stress prevent weight loss?
Absolutely. Chronic stress elevates cortisol, disrupts blood sugar, impacts thyroid conversion, and increases inflammation. All of those affect metabolism.
What if I have tried multiple programs and nothing has worked?
Many of the people I work with feel discouraged after trying plan after plan. Often the missing piece is not more discipline but better investigation. When root causes are addressed, the body frequently responds differently.
Lab Testing and Bloodwork
What is functional nutrition blood analysis?
It is a detailed review of standard lab work using optimal ranges and pattern recognition. Small shifts across multiple markers can reveal stress patterns that single numbers do not. You can find out more about this functional nutrition blood analysis here.
Why do my labs say “normal” if I do not feel normal?
Conventional ranges are wide and designed to detect disease. You can fall within “normal” while still operating far from optimal. We look at patterns, not just flags.
What is the difference between conventional lab ranges and optimal ranges?
Conventional ranges identify crisis. Optimal ranges aim to identify imbalance before crisis. The interpretation changes the intervention.
Do I need new lab tests to work with you?
Not always. Many clients already have usable lab work. We review what you have first. Additional testing is only recommended if it meaningfully informs your plan.
What blood markers do you evaluate and why?
Blood sugar markers, thyroid patterns, inflammatory indicators, liver enzymes, nutrient levels, and stress markers are commonly reviewed. Together, they tell a story about how your system is functioning.
Programs and Working Together
How do I know if your program is right for me?
That is what the free discovery call is for. We review your history, your symptoms, and your goals to determine alignment. There is no pressure, only clarity.
Who is the ideal candidate for this type of work?
Someone who feels stuck despite trying to do everything right and is willing to look deeper instead of chasing quick fixes.
What results can I realistically expect?
Many clients experience improvements in energy, clarity, digestion, and metabolic responsiveness. Results vary, but the focus is long-term improvement rather than rapid swings.
How long does it take to see results?
Some shifts occur within weeks. Deeper repair may take several months. Sustainable change requires time and consistency.
What happens during a discovery call?
We discuss your current challenges, health history, and goals. I outline how I would approach your situation so you can determine whether it feels right to move forward.
Is the discovery call a sales pitch?
No. It is a conversation. If we are aligned, I will explain next steps. If not, you leave with greater clarity.
Do you work with clients outside of Las Vegas?
Yes. While based in Las Vegas, I work virtually with clients nationwide.
Do you accept insurance or offer payment options?
Services are private pay, I do not take insurance of any kind. Payment structure is discussed during your discovery call.
GLP-1 and Medication Questions
Is there a natural alternative to GLP-1 medications?
My focus is supporting blood sugar balance, appetite signaling, gut health, and metabolic stability naturally. Medication decisions are personal and should be discussed with your prescribing provider. I do offer a product that helps your body with its own natural GLP-1 production.
Can I work with you if I am currently on GLP-1 drugs?
Yes. Many clients seek metabolic support alongside medical care.
Practical and Lifestyle Questions
Will I have to follow a strict diet?
No. Restriction alone rarely fixes metabolism. We focus on balance, nourishment, and sustainability.
Do you provide meal plans or supplement protocols?
Guidance is personalized. Supplements are recommended only when appropriate. Education and structure are prioritized over rigid rules.
How much time and commitment does this require each week?
Time varies by individual. The goal is integration into real life, not adding another overwhelming system.
In Their Own Words: Case Evidence
Real reviews from real clients, straight from Google and Yelp. This is what it looks like when someone finally gets an answer.
Since she’s become my health Detective, I’m in the process of shedding the menopause/COVID weight. I’ve noticed my energy has increased from her recommendations regarding supplements.
She is helping me, with accountability, as I cut out sugar and alcohol, to help my liver and insulin issues, and all this to help me heal from the digestive and skin issues I’ve suffered with over the years. Yes, gut issues, skin issues, liver and hormone problems are all connected. I couldn’t have done it on my own. Wendy is knowledgeable and experienced in many health pathways. She set up a plan specifically for me, with different phases, so my body has time to adapt as it heals. She has suggestions for what foods to avoid and what I can actually eat during this healing program and what supplements to take and which not to take during particular phases of this journey. I’m seeing results already. Thanks, Wendy, for doing what you do.
They are here for “you” and it can be a slow and subtle process of recovery. You have to have patience with your body to respond. Weight loss will never come easy to a Hashimoto’s patient. Finding root causes takes a very hard critical look by yourself as well as a professional. I don’t see any bad reviews but I wanted to take time to address this. People can go through immense suffering and spending those hard earned dollars on conventional medicine deductibles does not equal good outcomes necessarily. Please teach yourself too. Great books and documentary seminars online these days on healthy aging and autoimmune recovery.
After seeking Nutrition Works of Las Vegas, my whole outlook on the scenario changed. I was helped with finding the correct nutrition to lose the weight. Was guided to supplements that made me feel better, more energy, and focus. She listened to how my body was reacting and tweaked the list along the way. After a little over 2 months, I have dropped 24lbs. I feel so much healthier. I wake up and don’t need coffee or energy drinks to get through the day. I sleep better. But most of all, my personal health issues have improved and my worry is gone! I couldn’t recommend Nutrition Works enough — without her guidance I wouldn’t be where I am today.
Wendy has been extremely helpful, knowledgeable, and available. I feel like I am finally on a path that is sustainable and doesn’t feel like I’m missing out.
Her extensive knowledge regarding nutrition, supplements and vitamins has changed my entire life, and I can’t even describe how amazing I feel because of her recommendations, guidance and wisdom. Thank you Wendy!!!!
My cleanse was for 30 days and I felt fully prepared and it helped having someone to answer questions. On day 2 I started getting a metallic taste in my mouth and on day 3-4 the fatigue hit me. But I knew based on my conversations with Wendy that it would pass and I would be on the other side feeling more energetic. I had no idea how bad my brain fog was before the cleanse and now that I’ve experienced life with a clear mind…I’m a repeat customer! Thirty days twice a year is what I’m committed to doing now that I know I have support and the perfect detox products for me. Nothing harsh and nothing extreme but highly effective!! Thanks Wendy for encouraging me, keeping me on track, and being my cheerleader! Couldn’t have done it without you!
I started working with Wendy Nikkel in June and have dropped another 20 lbs! However, this is not what mattered. She basically fixed my IBS from severe pain, always constipated, to movement and manageable! I feel so much better, I would recommend Wendy to help anyone with health issues, as she can figure it out!
I took advantage of her free consultation and I’ve been a client ever since. With Wendy’s knowledge and guidance my pain has been reduced significantly and I’ve safely lost weight. About 40 lbs so far! Wendy has helped my friends and family with everything from Type 2 diabetes, heart disease, cholesterol, and even kidney stones. We can’t thank her enough!
She has done extensive study in the areas of Genetic DNA Nutrition, Master Herbalism, Detox, and Hormones. Wendy cares about her clients and she’ll do the best that she can to take care of their needs.
She is very knowledgeable, goes above and beyond. She researches supplements to be sure you are taking the best out there and not wasting your money. She researched the digestive issues I was having so she knew how to best help me. Wendy would continue to check in with me to see how I was feeling. She cares. It showed in her follow up of my progress. I would give her ten stars if it was available. Amazing nutritionist, amazing human! Thank you Wendy…
I decided to order and try them out because I am not a fish eater and cannot stand the after taste of some brands of fish oil. I have been taking them for only about 5 days now and already notice that my appetite has decreased, I have almost no cravings and the pain in my back and hip has decreased dramatically. I appreciate the time and research Wendy has put in to recommend a quality product. Thank you Wendy!
After meeting her we just hit it off, her views on health and nutrition are in line with exactly what I had pictured for my health and wellness journey. Weight loss has always been a focus of mine, but this time it was more than that. I knew what I wanted, I just needed a little help in the right direction. I wanted to not only focus on my overall health but how to heal my body from the inside. One of my priorities was making sure my body is nutritionally fed. She has been educating me on how my body reacts with how I fuel my body. Wendy is the utmost professional yet she has a touching compassion and dedication to her clients. I am thrilled to be able to say that I am able to work with her.
I have been replacing my ‘old standby’ vitamins with the one’s she advocates. I have been going through an intense exercise program for the last 4 months and know that I would not have been able to do this without her advice and products. I’d tried it before and had to stop after a couple of weeks from exhaustion and pain. I enjoy Wendy’s sincere and professional care.
After my first consultation, I found her to be an open professional, which I was very comfortable opening up to about my personal health problems. She is a walking book FULL of information and truly cares about creating a genuine relationship between her clients and helping solve their problems. For every health problem or issue I had, she had the explanation and solution. For supplements I was concerned about taking, she explained it and was knowledgeable about every ingredient listed. I am currently feeling a lot better and on the road to healing. I recommend her if you want to find the root cause of your current health problem or issues.
She firmly believes in eating right and has the highest quality nutritional supplements available. She cares about her clients which is hard to find these days! Thank you Wendy for helping me feel so much better and getting me on the right path to a healthier me!
She is very supportive during the process and answered all the questions and concerns I had while detoxing my body! She is very knowledgeable and professional.
Wendy made the whole process go very smoothly and was always there to help if any questions were to arise. Thanks again!
Finding Wendy was the best thing for my health and life. Wendy spent the time needed for me to understand what is good and what is bad for me. She was very patient and had all the tools at her disposal to not only ‘tell’ me what to do, but to ‘teach’ me what is good and what is bad. One of the best things about Wendy is that she does not prescribe for you a meal plan that will keep you hungry. Instead, she teaches you what is good and what one should avoid, and carefully goes through the list of what is healthy. She was always available for questions whether by phone, in person or by text. I will definitely be working with her in the future for my health needs!
She is genuinely caring and supportive in every step of the way. She is truly knowledgeable and professional. If you follow her advice you can get back to true health, wellness and proper nutrition that most of us are missing. I highly recommend her services!
Wendy came into my world in 2017. Wendy has been a huge part in my success, more today as she assisted me with my most recent diagnosis of Rheumatism arthritis.
Looking forward to the results. Wendy is caring and very knowledgeable, I highly recommend her services!
She has used a scientific angle to revamp my relationship with nutrition and supplements. I feel better and have more energy! Thank you Wendy!
She explains things well, and gives me excellent support to help me understand how I can heal myself. I’m so happy I met her! Thank you Wendy!
I think everyone can benefit from her expertise and incorporating nutrients into your daily routine that you’ve been missing. Thank you so much Wendy!
Very attentive to my needs and reached out often to check on me during my detox. Wendy was also always available by phone or text for any questions I had. I would definitely recommend to any of my friends looking for a nutritionist!
Her guidance and advice was key through the Detox 360° program. This was the wake up call I needed to do the work. Her efforts on my behalf mean the world to me and I’m full of gratitude that I found her! Make the decision today to contact Wendy, you will be healthier and happier!
Wendy is absolutely fantastic! She is kind, caring and listens. Wendy will go to bat for you and do loads of research on your behalf. I am so happy I found her!
Wendy is great to work with, very personable and thorough. I am seeing improved results in my health and overall wellbeing, looking forward to our next visit.
It has been a bit since I saw Wendy for the first time and I am feeling so much better. Knowing what your body needs and having her help motivate is a wonderful thing. Thank you!
I feel really well taken care of. I feel I have an advocate for my health journey. My health has improved with her input and I feel heard and that I am important.
I am very impressed with not only her knowledge, but how she is so relatable and makes you feel like long lost friends every time you check in. No judgments, just a real loving human being supportive and sharing her healing gifts with all of us.
Learning the importance of fueling my body correctly has made a world of difference in my life and my mountain biking! I highly recommend checking this out if you’re not feeling as good as you’d like!
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