Dr. Brendan McCarthy

The 6-Week Nutrition Reset I Use With Patients


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This episode is about more than food.

It's about understanding why we reach for certain foods, creating a realistic off-ramp from ultra-processed eating, and giving your body a chance to reset.

If you've ever felt like you're doing everything right but still struggling with weight, energy, inflammation, or cravings, this episode is for you.

 

Citation:

Hall, Kevin D., et al. “Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial of Ad Libitum Food Intake.” Cell Metabolism, vol. 30, no. 1, 2019, pp. 67–77.e3. https://doi.org/10.1016/j.cmet.2019.05.008

— This is the cornerstone. Same calories, sugar, fat, fiber, and macros on both diets; people ate ~500 kcal/day more on the ultra-processed one and gained weight. It’s the strongest evidence that the processing, not just the nutrients, changes intake.

Why fat + sugar together hijack reward more than either alone (the “hyperpalatable” mechanism)

DiFeliceantonio, Alexandra G., et al. “Supra-Additive Effects of Combining Fat and Carbohydrate on Food Reward.” Cell Metabolism, vol. 28, no. 1, 2018, pp. 33–44.e3. https://doi.org/10.1016/j.cmet.2018.05.018

McDougle, Molly, et al. “Separate Gut-Brain Circuits for Fat and Sugar Reinforcement Combine to Promote Overeating.” Cell Metabolism, vol. 36, no. 2, 2024, pp. 393–407. https://doi.org/10.1016/j.cmet.2023.12.014

— Together these support your point that engineered fat-plus-sugar foods (the Doritos idea) light up reward pathways more than natural foods, because fat and sugar run on separate gut-brain circuits that combine.

Why “glycemic velocity” matters — hidden refined starches like maltodextrin

Hofman, Denise L., et al. “Nutrition, Health, and Regulatory Aspects of Digestible Maltodextrins.” Critical Reviews in Food Science and Nutrition, vol. 56, no. 12, 2016, pp. https://doi.org/10.1080/10408398.2014.940415

— Supports the egg-bite/maltodextrin point: maltodextrin is a refined starch with a glycemic index around 85–110, higher than table sugar, hiding on labels as “modified food starch.” Backs your “what the calories came from” framing.

Why these foods genuinely relieve stress (your central, original thesis)

Ulrich-Lai, Yvonne M., et al. “Pleasurable Behaviors Reduce Stress via Brain Reward Pathways.” Proceedings of the National Academy of Sciences, vol. 107, no. 47, 2010, pp. https://doi.org/10.1073/pnas.1007740107

Tomiyama, A. Janet, et al. “Comfort Food Is Comforting to Those Most Stressed: Evidence of the Chronic Stress Response Network in High Stress Women.” Psychoneuroendocrinology, vol. 36, no. 10, 2011, pp. 1513–1519. https://doi.org/10.1016/j.psyneuen.2011.04.005

— This is the science behind “the food was doing something right.” Palatable food measurably dampens the HPA (cortisol) stress axis through reward pathways — which is exactly why pulling it without replacing the stress tool fails.

Why cravings are state-dependent and rise with stress (the “urge depends on the state of your blood / stress level” claim)

Adam, Tanja C., and Elissa S. Epel. “Stress, Eating and the Reward System.” Physiology & Behavior, vol. 91, no. 4, 2007, pp. 449–458. https://doi.org/10.1016/j.physbeh.2007.04.011

Darcey, Valerie L., et al. “Brain Dopamine Responses to Ultra-Processed Milkshakes Are Highly Variable and Not Significantly Related to Adiposity in Humans.” Cell Metabolism, vol. 37, no. 3, 2025, pp. 616–628. https://doi.org/10.1016/j.cmet.2025.02.002
 (edited) 
 
 
WHAT TO EAT FOR THE NEXT SIX WEEKS — Protein. Plant. Potato. (P³)

The formula for every meal: one protein + one plant + one starch (potato, or beans and rice). Add fat — olive oil, butter, avocado, cheese, nuts. Add flavor — salt, pepper, garlic, lemon, vinegar, salsa, hot sauce, herbs. This is not the meal you dreamed of. This is the meal that sets you free.

BREAKFAST
  1. Eggs + sautéed vegetables + fruit on the side
  2. Plain Greek yogurt + berries + a handful of nuts
  3. Leftover chicken or beef + potato + vegetables (last night’s dinner works)
  4. LUNCH
    1. Chicken + roasted potato + green salad with olive oil and lemon
    2. Tuna + white beans + cucumber + tomato, dressed with olive oil and vinegar
    3. Beef + potato + peppers + salsa
    4. DINNER
      1. Sheet-pan chicken + potatoes + green beans
      2. Instant Pot chicken + potato + a vegetable
      3. Burger patty (no bun) + potato + salad
      4. Batch chili (beef + beans + tomato) over rice
      5. Baked fish + sweet potato + roasted broccoli
      6. Pork + beans and rice + sautéed greens
      7. THE DURESS PLATE — for when the day collapses
        One protein + one plant + one starch, zero cooking. Examples:

        • Hard-boiled eggs + apple + handful of nuts
        • Tuna + canned beans + cucumber, with olive oil
        • Pre-cooked/frozen ground beef + frozen vegetables + microwave potato
        • String cheese + fruit + a few nuts (in a real pinch)

        SIMPLE RECIPES
        Sheet-Pan Chicken & Potatoes (serves 4)
        Toss chicken thighs and quartered baby potatoes in olive oil, salt, pepper, garlic. Roast at 425°F (220°C) ~35–40 min. Add green beans for the last 15 min.

        Batch Chili (serves 6)
        Brown 2 lb ground beef with chopped onion. Add 2 cans diced tomatoes, 2 cans beans (drained), garlic, cumin, chili powder, salt. Simmer 30+ min. Freezes well — make once, eat all week. Serve over rice.

        Instant Pot Chicken
        Chicken breasts + ½ cup broth + salt, garlic, paprika. Pressure cook 10 min, natural release 5. Shred. Pairs with any potato + vegetable.

        The 5-Minute Tuna Bean Bowl
        Can of tuna + can of white beans (rinsed) + diced cucumber and tomato. Dress with olive oil, lemon or vinegar, salt, pepper.

        Microwave Potato, Done Right
        Pierce a potato, microwave 5–7 min. Split, add butter or olive oil, salt, pepper. The reliable, universal starch.

        Remember: Don’t aim for one perfect week repeated six times. Just follow the basic protocol the best you can for six weeks. When a craving hits, run the nine-minute interrupt from Episode 14.
         

        Dr. Brendan McCarthy is the founder and Chief Medical Officer of Protea Medical Center in Arizona. With over two decades of experience, he’s helped thousands of patients navigate hormonal imbalances using bioidentical HRT, nutrition, and root-cause medicine. He’s also taught and mentored other physicians on integrative approaches to hormone therapy, weight loss, fertility, and more.

        If you’re ready to take your health seriously, this podcast is a great place to start.

        👇 Tap Subscribe to learn more about what’s actually happening in your body, and what to do about it.

        📘 Read Dr. McCarthy’s Book:

        Jump Off the Mood Swing – A Sane Woman’s Guide to Her Crazy Hormones
        https://www.amazon.com/Jump-Off-Mood-...

        📲 Follow Dr. McCarthy:

        Instagram: @drbrendanmccarthy
        TikTok: @drbrendanmccarthy
        Website: www.protealife.com

        💬 Got a question or topic for a future episode? Let us know in the comments! 

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