Medical Weight Loss

Your weight struggles aren't about willpower. They're about hormones, metabolism, and lifestyle factors that require real solutions.

root cause analysis

Most weight loss failures stem from undiagnosed medical issues that sabotage your efforts, and diet plans that are not sustainable. At Radiance Natural Medicine, our doctors focus on a comprehensive approach that uncovers the specific hormone imbalances, metabolic blockages, and systemic dysfunctions that have been working against you, allowing us to target the root cause of your metabolic issues.

advanced testing protocols

Our comprehensive testing goes beyond basic bloodwork to evaluate for insulin resistance, leptin resistance, thyroid function, sex hormones, inflammatory markers, and vitamins / nutrients. The results help guide our doctors in formulating a targeted treatment plan that addresses your body's specific needs rather than generic approaches.

Medical Weight Loss at Our Naturopathic Clinics in Newberg and Lake Oswego, OR

At our naturopathic medical clinics in Newberg and Lake Oswego, OR, Dr. Pendell, Dr. Keddie, and Dr. Kelly specialize in medical weight loss therapy to help men and women achieve sustainable results and feel their best. Healthy weight loss is best achieved when your hormones are in balance, your metabolism is firing on all cylinders, energy levels are optimal, and you have realistic tools for day to day nutrition and exercise.

At Radiance Natural Medicine, we offer a comprehensive and individual approach to your weight loss journey.  After careful evaluation of symptoms, history, and lab testing, we form a treatment plan designed to meet your specific needs and goals. Whether you’re experiencing difficulty losing weight despite diet and exercise, weight gain in peri-menopause or menopause, weight gain with PCOS, or you would like to optimize your body composition, we are here to help you get control of your health and achieve your goals.

What is Medical Weight Loss?

Medical weight loss is a targeted approach that addresses the underlying physiological factors that might make it difficult to lose weight and maintain long-term results. Unlike traditional fad diet programs, medical weight loss recognizes that underlying root causes of weight gain and lack of weight loss are often complicated by hormone deficiencies or imbalances, nutrient deficiencies, metabolic dysfunction, inflammation, and other factors that require proper evaluation and treatment.

You’ll also gain support for common challenges like:

  • Constant hunger or difficulty feeling full

  • Feeling you don’t really eat much, but still can’t lose weight

  • Energy crashes and fatigue

  • Brain fog or mood swings

  • Trouble sleeping

  • Stubborn belly fat

  • Loss of lean muscle

Medical Weight Loss Tools / Treatments

GLP-1 Therapy (Semaglutide & Tirzepatide): These FDA-approved medications are proven, powerful tools for optimal weight loss. They effectively regulate hunger, stabilize blood sugar, and support fat loss consistently delivering impressive results for both men and women.

How GLP-1 Therapy Transforms Your Metabolism

GLP-1 medications work by mimicking your body's natural incretin hormones, creating powerful metabolic changes that go far beyond simple appetite suppression. These medications enhance insulin sensitivity, allowing your cells to use glucose more efficiently and reducing fat storage. They slow gastric emptying, which helps you feel satisfied longer and prevents blood sugar spikes that trigger cravings.

At the hormonal level, GLP-1s help reset your body's weight set point by improving leptin sensitivity - the hormone that signals fullness to your brain. This breaks the cycle of leptin resistance that often keeps people trapped in patterns of overeating. The medications also reduce inflammation markers and improve mitochondrial function, leading to better energy production and fat burning.

Perhaps most importantly, GLP-1 therapy helps restore the natural communication between your gut, brain, and pancreas. This creates sustainable metabolic improvements that support long-term weight maintenance, not just temporary weight loss. Many patients experience improved energy, better sleep, reduced inflammation, and enhanced mental clarity as their metabolism becomes more efficient.

Nutrient / Vitamin Supplement Regimens

Evidence-based nutraceuticals like omega 3 fatty acids, berberine, chromium, myo-inositol, and vitamin D just to name a few can be crucial in optimal metabolic functioning. Depending on your case and needs, we may recommend specific vitamins and supplements to enhance your weight loss results and improve long-term health. 

Bioidentical Hormone Replacement Therapy (BHRT)

Hormonal imbalances are often the hidden roadblock preventing successful weight loss, especially for patients over 35. Our bioidentical hormone replacement therapy uses hormones that are molecularly identical to what your body naturally produces, restoring optimal levels for enhanced metabolism and body composition.

Key Hormones for Weight Loss:

Thyroid Optimization - Thyroid evaluation and treatment to restore metabolic rate, energy production, and fat burning capacity. Many patients have subclinical thyroid dysfunction that standard labs miss but significantly impacts weight loss ability.

Testosterone Therapy - For both men and women, optimal testosterone levels are crucial for maintaining lean muscle mass, reducing visceral fat, and supporting metabolic health. Low testosterone creates a cycle of muscle loss and fat gain that makes weight loss nearly impossible.

Estrogen & Progesterone Balance - Proper ratios help regulate insulin sensitivity, reduce cortisol production, and prevent the weight gain patterns common during perimenopause and menopause.

Growth Hormone Support - When appropriate, growth hormone optimization helps preserve muscle mass during weight loss, improves recovery, and enhances fat metabolism.

Cortisol Regulation - Addressing chronic stress and high cortisol levels that drive belly fat storage and sugar cravings.

BHRT works synergistically with GLP-1 therapy, creating an optimal hormonal environment where your body can effectively lose fat while maintaining muscle and energy. This comprehensive approach addresses the root hormonal causes of weight gain, not just the symptoms.

Nutritional IV Therapy - IV therapy can be a powerful tool in weight loss and metabolism to provide your body with essential nutrients and targeted support. From basic vitamin replacement to NAD+, methylene blue, glutathione, and iron, IV therapy is a power house to your body to promote optimal cellular and mitochondrial function. 

Emsculpt Neo - Revolutionary Body Contouring Technology

Emsculpt Neo combines high-intensity focused electromagnetic (HIFEM) energy with radiofrequency heating to simultaneously build muscle and eliminate fat - delivering results that diet and exercise alone cannot achieve. This FDA-cleared treatment is the only technology that can reduce fat by up to 30% while increasing muscle mass by up to 25% in targeted areas.

How Emsculpt Neo Accelerates Weight Loss:

The treatment induces supramaximal muscle contractions - equivalent to doing 20,000 crunches or squats in a 30-minute session. These intense contractions force your muscles to adapt and grow while simultaneously triggering massive energy demands that burn fat in the treated area. The radiofrequency heating pre-conditions fat cells for optimal elimination while making the muscle contractions more effective.

Metabolic Benefits Beyond Body Contouring:

Building lean muscle mass through Emsculpt Neo creates lasting metabolic improvements. More muscle tissue means higher resting metabolic rate, better insulin sensitivity, and improved glucose utilization - all crucial factors for sustainable weight management. Patients often see improvements in core strength, posture, and functional movement that support more active lifestyles.

Perfect Complement to Medical Weight Loss:

While GLP-1 therapy and hormone optimization address the internal factors driving weight gain, Emsculpt Neo targets stubborn areas that resist traditional weight loss methods. The combination creates comprehensive body transformation - systemic fat loss with targeted muscle building and spot fat reduction.

Treatment areas include abdomen, buttocks, arms, calves, and thighs, with most patients seeing visible results after 2-4 sessions.


  • GLP-1 Therapy

    GLP-1 Therapy (Semaglutide & Tirzepatide)

    Revolutionary medications that mimic your body's natural hormones to regulate appetite, blood sugar, and metabolism. These FDA-approved treatments address the hormone deficiencies that often cause stubborn weight gain and make traditional diet and exercise ineffective.

  • Hormone Therapy

    Hormone Optimization

    Comprehensive evaluation and treatment of thyroid function, sex hormones, insulin resistance, and other hormonal imbalances that directly impact your ability to lose weight and maintain a healthy metabolism.

  • Nutritional & Metabolic Support

    Targeted supplementation and nutritional protocols to address micronutrient deficiencies, support detoxification, reduce inflammation, and optimize your body's natural fat-burning mechanisms.

  • Emsculpt NEO

    Emsculpt NEO

    Revolutionary non-invasive treatment that builds muscle and reduces fat simultaneously. This technology helps you achieve your weight loss goals while building lean muscle mass for long-term metabolic benefits and body composition improvements.

  • IV Therapy & Regenerative Medicine

    Nutrient infusions and regenerative treatments like PRP therapy to support metabolism, enhance recovery, and address any underlying health issues that may be preventing successful weight loss.

our approach to sustainable weight loss

At Radiance Natural Medicine, we take an extensive and individualized approach to weight loss. Dr. Kelly, Dr. Keddie, and Dr. Pendell take the time to listen to your concerns, review your weight loss history, evaluate your symptoms, and determine the best treatment plan for you. We utilize a combination of standard medical treatments and naturopathic guided treatments to give you the best of both worlds.

Individualized Medical Weight Loss Treatment Plans for Men and Women

At Radiance Natural Medicine, we utilize cutting-edge medical treatments and individualized medications to design your treatment plan for sustainable weight loss. We find what works best for you. Some patients want a slow-and-steady reset. Others are ready to move fast and aggressively. We meet you where you are.

If you are struggling with weight loss, then the only way to truly know if there is an underlying factor blocking your efforts is to get a proper evaluation and lab work done to find out!

Many primary care providers will refuse to investigate the root causes of weight gain or offer holistic weight loss solutions. It's not their fault, most conventional doctors are not trained in the art of metabolic evaluation and medical weight loss. They are trained to treat disease and pathology. With medical weight loss, we are working in the functional realm of medicine. You are not broken and you don't need to be fixed, but we can help you live the way you want with sustainable weight loss, better energy, improved metabolism, enhanced body composition, and renewed confidence in your body.

What to Expect On Your Weight Loss Journey

  • Comprehensive Initial Consultation: Dr. Kelly, Dr. Keddie, and Dr. Pendell take the time to listen to your concerns, review your weight loss history, evaluate your symptoms, and understand your goals to determine the best treatment plan for you.

  • Advanced Laboratory Testing: We utilize in-depth lab testing to evaluate hormone levels, metabolic markers, inflammation, nutrient status, and other factors that may be contributing to your weight struggles.

  • Personalized Treatment Protocol: Based on your evaluation and lab results, we create an individualized treatment plan that may include GLP-1 therapy, hormone optimization, nutritional support, and body composition enhancement treatments.

  • Ongoing Medical Supervision: We provide continuous support throughout your weight loss journey with regular check-ins, medication adjustments, side effect management, and access to your doctor through our secure portal messaging and phone calls.

Patient Success Story

“Dr. Heather changed my life. Actually, she helped me regain the energy, flexibility, and drive I used to have as a younger person. I feel like myself again! With Heather's knowledge of natural healing, diet and exercise are actually working again to get my weight under control. All the horrible surprises that came with hormonal changes have been vanquished. I can't say enough about how much my life has changed for the better since I found Dr. Pendell! Worth every cent!”

Thorough Medical Weight Loss Model

We utilize a healthcare model that allows ample time with the doctor to get to the root of your weight struggles. Our full-scale approach covers doctor visits, specialty laboratory work, medications, nutritional protocols, and access to the doctor via secure portal messaging and phone calls when needed.

At Radiance Natural Medicine, we combine the best of naturopathic medicine with cutting-edge medical weight loss treatments to give you the best of both worlds. Whether you're dealing with hormone-related weight gain, metabolic syndrome, stubborn fat that won't respond to diet and exercise, or want to optimize your body composition, we are here to help you every step of the way.

Frequently Asked Questions About Medical Weight Loss

Am I a candidate for GLP-1 therapy? Most adults who struggle with weight loss despite diet and exercise efforts are excellent candidates for GLP-1 therapy. During your consultation, we'll evaluate your medical history, current health status, and weight loss goals to determine if these medications are right for you.

What results can I expect and how quickly? Most patients begin seeing results within the first 2-4 weeks, with significant weight loss typically occurring over 4-6 months. The amount of weight loss varies by individual, but many patients lose 15-20% of their body weight or more when following our prescribed protocol at a rate of 1 pound per week.

What are the side effects and how are they managed? The most common side effects include mild nausea, especially when starting treatment. Our doctors are experts at managing these effects through proper dosing, supportive treatments, and nutritional protocols to minimize any discomfort.

How is this different from other weight loss programs? Unlike diet programs or weight loss clinics, we address the root medical causes of weight gain through a full-scale hormone evaluation, metabolic testing, and individualized treatment protocols. We're board-certified naturopathic physicians, not weight loss coaches.

What happens if I want to stop the medication? Our goal is to optimize your metabolism and hormone balance so that you can maintain your weight loss long-term. We work with you to develop sustainable lifestyle strategies and may recommend transitional protocols to help maintain your results.

Take the First Step Toward Sustainable Weight Loss

If you are experiencing difficulty losing weight, metabolic challenges, or hormone-related weight gain, medical weight loss may be the key to restoring your health and achieving your goals. At our naturopathic clinics, we are here to help you every step of the way, offering personalized, compassionate care tailored to your unique needs.

Contact us today to schedule your consultation and take the first step toward better health and sustainable weight loss.

Newberg: 503-482-6888
440 Villa Rd Newberg, OR

Lake Oswego: 503-863-2018
460 5TH ST Lake Oswego, OR