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Discover ways to engage with Osa Integrative Health
specializations
Osa Focal Points
Our work together restores whole-body balance and address specific diagnoses and concerns using the principles of functional medicine. While anyone can benefit from this approach, please read below to learn more about my areas of focus at Osa.

Metabolic Health
My personalized nutrition and lifestyle approach addresses the underlying imbalances which lead to conditions of metabolic dysfunction, which include
- type 2 diabetes and prediabetes
- cardiovascular disease/risk factors
- dyslipidemia
- hypertension
- MASLD/NAFLD,
- overweight & obesity
I use a combination of information gathering*, strategizing, and collaborating with you to create a personalized plan to move you toward your goals.
*Information gathering includes a Medical Symptoms Questionnaire, complete health history, and a basic medical panel. Optionally, I can also recommend functional testing to get further information to make informed decisions for your nutritional care.

Healthy Aging & Longevity
Level up your long-term health with personalized insights and an action plan to support your vibrant energy, strength, and resilience for the long haul. I use a combination of lab values, functional testing** (optional), health history information, current habits and personal preferences to build with you an individualized nutrition and supplement plan that is informed by current epigenetics research.
**Functional testing that I utilize includes:
- 3×4 Genetics testing
- Intracellular Micronutrients
- Organic Acids Testing (OAT)
- DUTCH (hormone test)


Sports Nutrition
Whether you are a competitive or seasoned recreational athlete, a weekend warrior, or someone who just enjoys a regular sweat, you can improve your performance and results with personalized fueling, hydration, and recovery plans. I use lab testing, dietary data, and health history to pinpoint nutritional needs, and we’ll use your specific training routine to determine optimal fueling and recovery.
Functional tests that may be particularly helpful here are:
- 3×4 Genetics gives us insight into how your body utilizes different fuel sources and how it responds to different types of training
- Intracellular Micronutrients testing informs us of your specific nutrient needs by looking inside cells, where you need nutrients to create energy, build, and repair.





options for working together
Services
01
Functional Care
Work one-on-one with me in individual sessions and experience the difference that personalized, holistic care makes.
How it works: I take a thorough health history, hear your story and your goals, assess your digestive and metabolic health, discuss your current nutrition status, and strategize with you to create a therapeutic plan to take you where you want to go on your health journey. We work together for a minimum of 3 months.
Cost:
Initial Consult (75 minutes): $300
Follow-up Sessions (45 minutes): $150
3-month Package (includes Initial Consult + two Follow-up Sessions): $500
I love to help clients leverage their nutrition benefits through insurance! I am in-network with Regence BlueCross BlueShield, First Choice Health, United Healthcare and Aetna. Please check with your insurance to confirm your coverage, or look for me through your provider search tools: search for Rebecca Buck Douville.
*Sliding scale: I reserve a fixed number of reduced price appointments available each month for financial burden and no insurance coverage/out of network:
Initial Consult: $150
Follow-up Sessions: $75
02
Tune Up
If you are tired of guessing and want someone to take a look at your labs and lifestyle with a functional lens, but aren’t sure yet if Functional Care is a good fit for you, this approachable package may be just what you’re looking for right now. Together we review your nutrition, lifestyle, and labs you already have and/or a customizable medical panel you order through my Fullscript platform.
How it works: Over two 45-minute appointments, we cover your daily habits, your goals, your roadblocks, and your lab work. Using all of this, we identify nutritional and lifestyle priorities to dial up your health and help move you toward your goals, whether those be prevention, performance, or function.
Cost: $275
Note: Cost does not include optional lab work, which is ordered after the first session.
03
Newsletter Community
Join the Bear Essentials newsletter community and stay up to date on functional medicine nutrition topics and updates from the Osa cave! I love to receive emails from my community and cover reader-proposed topics of interest–just reach out!
Cost: free
Have Questions?
Frequently Asked
Questions
Can I pay with HSA or FSA funds?
Yes, I can accept HSA/FSA funds! For your own records, you may need to obtain a “letter of medical necessity” from your primary care provider detailing that you are receiving nutritional care to address a specific medical concern or diagnosis. Please contact your benefits administrator to find out what your eligible expenses are.
Can I contact you between appointments?
Absolutely! I am available to answer quick questions via email, messaging through the electronic health record service, or scheduled phone calls (5-10 minutes). If you have more in-depth questions or concerns that cannot be answered in a 5-10 minute conversation or which are about new topics we have not yet discussed in session together, you may be asked kindly to schedule a follow-up appointment so that we can have adequate time together to get your questions fully answered. (I do offer abbreviated follow-ups for these situations).
How does billing work?
For one-on-one appointments, I do not bill until after date of service. You will receive an invoice. Payment is due in full at that time or on a pre-arranged payment plan. For group programs, payment is due in full prior to the first class, unless you have arranged a payment plan.
If paying with insurance, insurance will be billed for your appointment and you will receive a bill for any portion not covered (however, insurance typically covers nutrition sessions in full).
Can I pay on a payment plan?
Yes, I can create a payment plan for you as needed. Please ask.
What happens after I book my first appointment?
After you book an initial consult, I will send you several forms to complete at least 1 full day (24 hours) prior to your visit. The forms you will receive are: an intake form, a medical symptoms questionnaire, 3-day food journal, a privacy notice, and a consent form. If you have any lab work to share with me, you will be able to upload that into the electronic health record along with the forms. It can feel cumbersome to fill out a bunch of paperwork, but do please know that this is all in the service of providing the most personalized care possible for you.
What is functional nutrition?
Functional nutrition means slightly different things to different people. To me, functional nutrition is personalized health care that emphasizes nutrients and eating patterns as instrumental to whole-body balance and health. My educational background in nutrition is rooted in the systems biology approach, which I became aware of through my education in functional medicine. In systems biology, the body systems are are viewed as an interconnected and interdependent web, rather than being siloed as they often are in conventional medicine. In the systems biology paradigm, one imbalance can manifest as many different disease states, and conversely, one disease state can be caused by any number of different imbalances.
What this means in practice is that regardless of any diagnoses, I take time to consider your whole health history along with environmental factors including food, stress, movement, sleep, and toxin exposures. I also can utilize functional lab testing that can pinpoint nutritional deficiencies and biochemical imbalances. Particularly when dealing with stubborn or complex issues, this type of data can be very helpful in tailoring a nutrition, lifestyle, and supplementation plan for you. I believe my functional nutrition approach is successful because it factors in your individuality and supports your body’s innate ability to heal itself. Please visit my blog post to read a bit more on my scope of practice.
Still have questions?
Having trouble locating the specific information you’re looking for? Email me at becky@osaintegrative.com
Bear Essentials


