Your Path Back to Feeling Like Yourself
Personalized care to uncover what's keeping your body stuck — and build a plan that lasts.
A Different Way to Approach Midlife Health
You deserve a plan that treats your body as one connected system. Fatigue, brain fog, weight changes, digestion, hormones are often part of a big picture.
Advanced testing uncovers hormone imbalances, nutrient deficiencies, and inflammation early, before they become bigger problems. From there, we build your Personalized Wellness Plan: removing what's making you sick, restoring what your body needs, and guiding you every step of the way.

Our 4 Core Systems
The Vitality Renew Method™ addresses the four interconnected systems: hormones, lifestyle, gut, and cellular health. Together, they reveal what's really driving your symptoms.

Optimize
Create the conditions for your body to heal.
Help you build realistic habits that support your biology, so healthy choices feel sustainable instead of exhausting.

Balance
Bring your hormones back into sync.
Balance the hormone network so you sleep better, think more clearly, have steadier energy, and your metabolism works with you instead of against you.

Restore
Repair the gut that supports every other system.
Restoring your gut health, so that your body absorb nutrients, reduce inflammation, and boost immunity.

Clear
Restore cellular health from the inside out.
Restore your body's natural detoxification pathways so your cells can function more efficiently.
The Vitality Renew Method™ Programs
Everyone's journey is different. That's why we offer personalized programs built on the Vitality Renew Method™—so you can get the level of care, guidance, and support that's right for you.
From Foundational Reset
to Full-System Optimization
Use the chart below to compare your options and see which program is right for you.
Clarity
3 Months
Foundation Reset
Who's It For Those who eat well, exercise regularly, and have healthy habits, and want deeper insights into future health risks, or interested in supporting mood, metabolism with Bioidentical Hormone Replacement Therapy & Lifestyle
Ideal for Foundation healing & Prevention
Focus Area Fine-tune your nutrition, hormones, gut, detox and lifestyle in midlife, so we can prevent disease starting now.
How It Works Comprehensive testing + Monthly visits + targeted interventions.
Unlimited messaging
during Program
Comprehensive Testing
Stool Analysis, Metabolic, Cardiovascular, & Hormone Panel, Nutrient status
Inflammation markers
Targeted supplement guidance
Vitality
6 Months
Deeper Insights
Who's It For Those with early signs of disease, like fatigue, high cholesterol, high blood pressure, or blood sugar, digestive concerns, Autoimmune Disease such as Hashimoto's, Graves or Arthritis, or weight loss.
Ideal for Reversing Early Inflammation and early illness or imbalances.
Focus Area Uncover what's driving your symptoms, across hormones, gut, metabolism & inflammation, so we can get healthy now.
How It Works Comprehensive testing + Monthly visits + targeted interventions
Unlimited messaging during Program
Comprehensive Testing
Stool Analysis, SIBO Breath Test, Metabolic, Hormone & Cardiovascular Panel, Nutrient status,
Inflammation markers (SIBO, Food Allergy Test, Toxins, mold - as needed)
Targeted supplement guidance
Vitality Elite
9 Months
Full Optimization
Who's It For Those who need deeper root-cause evaluation for their health issues or High-performers optimizing for longevity, performance, and anti-aging with genomics evaluation
Ideal for High-level performance & biological age reversal
Focus Area A complete picture of your hormones, gut, metabolism, immune function, detox pathways + Optimization + Genomics, so we can stay healthy now an 15 years down the road.
How It Works The most thorough testing we offer + highest level of support + long-term strategy for healthy aging.
Unlimited messaging during Program
Comprehensive Testing
Stool Analysis, SIBO Breath Test, Metabolic, Hormone & Cardiovascular Panel, Nutrient status, Inflammation markers (SIBO, Food Allergy Test, Toxins, mold - as needed)
+ Cognoscopy for Cognitive Health
+ Genetic Analysis
Targeted supplement guidance -

Why Integrative & Functional Medicine?

We empower you with a personalized, systematic approach that addresses the underlying causes of disease. We spend time listening to your histories. We look at your whole person, not just an isolated set of symptoms.
Together, we engage in a detailed investigation of your genetic, biochemical, environmental and lifestyle factors, using in depth lab testings, scientific analysis and disease diagnosis with our clinical expertise.
We leverage our clinical findings and your individual health goals to build personalized treatment plans that help you get improved outcomes. From nutrition to exercise, stress management to supplements. We also love tracking your progress with data!
• Low energy
• Brain Fog
• Insomnia
• PMS, Menopause, Hot flashes
• IBS
• Food sensitivities
• Autoimmune disease
• Thyroid imbalances
• Stubborn weight
• Metabolic disorder
• Sleep problems
• Cognitive decline
What is Functional Medicine? What are Labs we use, and what are our approach?
Have A Question?
Success Stories
”Dr. Onna Lo is an incredible doctor. She evaluates you as a whole person and guides you to reach your optimal level of health vs. just prescribing a "quick fix" for individual symptoms.”
– Courtney A.
“Dr. Lo is an amazing doctor. She is kind and compassionate, and has helped me with symptoms that traditional Western doctors have rolled their eyes at me for.“
– Julie. M
“I have more energy and focus, am sleeping better and have improved my body composition. Dr. Lo is amazing and the best doctor and health coach I've ever had!“
– Bonnie. B
A FREE MASTERCLASS TO
"Unlock Lasting Energy & Confidence"
The 6 Hidden Roadblocks Keeping You Stuck in Fatigue, Brain Fog & Stubborn Weight
Do you know your Health Score?
More Success Stories
“I had been battling Ankylosing spondylitis for over 15 years ... After 3 months (working with Dr. Lo) I have lost 22 pounds, improved my sleep, my pain has significantly improved as are my GI system and my skin. On top of that, I have been able to discontinue three medications! I am still in the restoration phase of my treatment plan and am continuing to feel better every day.”
– C.B
“I've seen numerous providers over the years for an autoimmune condition and other symptoms that no one has known what to do with. I feel so grateful to have found Dr. Lo. She has honestly rocked my world, introducing me to an entirely new and refreshing way of approaching health.”
– Sarah A
”From functional medicine and exploring alternative treatments to my autoimmune condition with supplements and dietary changes, to discovery of my gut health, to cranial/sacral & acupuncture treatment, Dr. Lo is my go-to. She's extremely patient, understanding, and clear in her explanations and treatment plans. Go check her out!”
– M.R.
You deserve to Feel Energized, Fabulous & Fulfilled.
Let’s get unstuck & create a path forward together.
Frequently Asked Questions
A Different Way to Approach Your Health — One That Actually Works Over Time
Most healthcare today is designed around visits — short, problem-focused, and often limited by insurance coverage. This works well for acute issues, but it often leaves women feeling stuck when dealing with ongoing symptoms like fatigue, hormone imbalance, gut issues, or brain fog. We do things differently. Our care is structured as a membership program because lasting change is a process, not a single visit. We work closely with you over time — guiding, adjusting, and supporting you step by step — to help you get to where you want to be. Instead of addressing one symptom at a time, we take a systems-based approach, looking at hormones, gut health, detoxification, and lifestyle together. Your plan is personalized to your history, your data, and how your body responds. This allows us to not only improve how you feel now, but also support long-term health, resilience, and prevention — so you’re no longer reacting to your body, but truly understanding and working with it.
Dr. Lo's programs are for those who:
- Believe in their ability to create the life they desire and are ready to take action.
- Are committed to self-care.
- Are open to learning new ways of thinking and practicing new behaviors.
- Want an expert partner to guide, support, and help them achieve optimal health.
- Understand that healing is not linear and there will be ups and downs.
- Understands we treat the whole person, and are open to Mind - Body - Spirit approach
Dr. Lo will call you on the phone. It is an opportunity to discuss your health and wellness goals and for us to learn if you are a good candidate for our program. Be sure to read about the details of our Happy Health Essentials Program before you schedule the call.
Dr. Lo is a Functional Medicine consultant and cannot be your primary care provider. We recommend all patients maintain a relationship with a primary care provider. Our office does not offer after hours or on-call services. If you have an emergency, you will need to contact your primary care doctor or seek care at an emergency room. For female patients, we recommend you also maintain a relationship with an OB/gyn as we do not provide women’s preventative care such as pap smear.
We require 48 hours notice for a changed or cancelled appointment. A $500/ hour or $250/ 30minute cancellation fee will apply for a missed appointment. Cancellation notice can be given via phone, email or messaging through patient portal.
We take your privacy seriously. Please review our policy here. We only accept communications through our secure patient portal or phone system in order to protect your health information once you become our patient.
Yes, we offer video appointments through secure meetings.
Phone appointments are available for existing patients, but your initial visit must be in-person or by video.
Dr. Lo is licensed in California only, so you have to be a resident in California or if you outside of California, you are required to return for an in-person visit at least once a year.
Your initial visit needs to be in-person or by by video.
You can schedule follow up appointments to be in person, by phone, or by video.
If you do not live in a state in which Dr. Lo is licensed, you need to return for an in-person visit at least once a year.
Yes, Dr. Lo works with children over the age of 8 years old.
Patients under 18 years old are seen at $500 for intake and $500 / $250 for 60min / 30min follow up visits.
Yes, we do see men in our practice, and our programs are just as effective for men.
We are not contracted with any insurance company and do not bill your insurance.
If you have a PPO plan, your visits may be eligible for reimbursement from your insurance company at out-of-network provider rates. We recommend you check with your insurance company and ask them about your out-of-network coverage since the reimbursement rate varies with each individual.
We are not a Medicare provider and are opted out of the Medicare program.
Upon request, we will provide a superbill for you to submit to your insurance company directly for reimbursement. It will have an ICD-10 code for diagnosis and CPT codes for services performed.
If you would like to check on your insurance reimbursement before your visit, the CPT billing codes we use for the Initial visit are 99205. Follow up visits are 99215.
We do not guarantee reimbursements from your insurance company.
If you would like us to respond to insurance carrier requests for additional information about your claim, Dr.Lo will bill at a prorated amount of her hourly fee to submit this information if the request cannot be completed by the Patient Coordinator.
Typically, the fees should be reimbursable with your FSA/HSA/HRA. However, different plans may vary, always check with your plan to confirm.
Comprehensive Nutrition and Organic Acid Panels
• looks at your vitamins and micronutrients and identify key deficiencies that are essential for major metabolic pathways
Comprehensive Hormone Testing
• Cortisol, Thyroid hormone, Sex hormone panels
Comprehensive Stool Analysis
• identify inflammation, infections like candida / bacteria / parasites, dysbiosis, and digestive deficiencies
Food Allergy and Gluten Sensitivity, Celiac Panel
Comprehensive Genetic Testing:
• Methylation
• Inflammation
•Cognitive health
• Hormone and Metabolism
• Mood and Performance
Advanced Cardiac and Diabetes Panel
• Inflammatory markers
• Advanced Cardiovascular health markers and lipid profiles
• Glucose tolerance test
Toxic exposure
• Mycotoxin
• Heavy Metal
Neurotransmitter Testing
For advanced testing done through blood work, we’ll use a lab local to you. For advanced testing done outside of blood work, these will be collected at home. Our team will ship these directly to your home, you’ll ship them back to the lab. All results will be shared with you on your secure patient portal.
Many tests are covered by insurance or HSA/FSA or Medi-care. It is not part of your Programs fee. We will discuss the necessity of any test, your budget and its cost with you before ordering it. We promise to be cost conscious without compromising your outcomes. We also negotiated direct lab pricing with lab companies for tests not covered by insurance if you have to pay out of pocket. On average, you should budget between $600 – $1500 for functional medicine lab testing.
If these don’t fit into your budget, don’t worry. Your medical team will work with you to customize your health plan based on your needs. Their recommendations are always rooted in what is best for your health; your providers are not incentivized to order these tests.
Yes, they are shared with you in your patient portal where you can download or view.
We value food as medicine and integrating therapeutic plans through lifestyle changes, but we find supplements to be very helpful in restoring and maintaining health.
We offer easy, online ordering for supplements. We hold our choices of supplements to the highest standards in terms of bioavailability, manufacturing practices, and quality control and sourcing. All our patients enjoy a 10% professional discount from our preferred stores.
The administrative cost of sending Medical Records to you or your doctor is $50. You have access to all your labs results through your portal, which you can download and save a copy. Please allow up to 10 business days after you have signed the release form to receive your records.
Yes. There is a minimum charge of $50, and there may be an additional charge prorated for any physician time spent that is greater than 15 minutes.
Our team will not be able to complete your Disability Claim request. As a practice, our policy is to defer this decision to our member's primary care physician (PCP) or sub-specialist providers. If you meet the requirements for disability, we encourage you to discuss your need for a letter and claim submission with your PCP and specialist; however, we are more than happy to send you or your PCP a complete summary of your medical records at our clinic if needed.
We offer programs that range from 3-9 months, afterwards, you can continue with extending your continued active care with memberships.
While we are confident the program will help you understand better where are you and what you need to move towards recovery, we do not guarantee or promise results. We also do not refund services that has been rendered. However, we want you to get the care that you need most. If, for any reason, you decide to discontinue working with us, you would simply notify us by email, portal message, or directly contact us by phone and we will cancel your membership for the next monthly billing cycle.
Functional Medicine Consults are offered if you
-Want a 1 time appointment with Dr. Lo for 2nd opinions
-Want to review you health history and discuss your health in the context using principles of Functional Medicine
-Already have a doctor and want possible new directions for your doctor to implement
-Want to explore what your treatment would be like with our clinic before you commit to becoming a patient with our program and membership
-Dr. Lo will not be able to write prescriptions, or order lab testing without follow up appointments.
90 minutes video or phone consults – $1500
60 minutes video or phone consults – $1000
Please keep in mind that this appointment may not be a good fit if you are:
-Looking for a clinician to oversee your treatment
-Interested in having Dr. Lo order tests without follow up or write prescriptions for you without follow up.
You might want to instead consider our Vitality Renew Program.
Your health won’t wait—why should you?
Let’s get to the root of what’s getting you stuck.
