Robin Berzin, M.D.’s
Essential Gut Health
Protocol overview
Last updated: May 13, 2025
5 Nutrients
Probiotics
20billion CFU
Probiotics help to replenish and balance the gut microbiome. Strains like Lactobacillus acidophilus and Bifidobacterium lactis are known for their roles in improving digestion and modulating the immune system, while Lactobacillus paracasei helps support the intestinal barrier. [1]
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Log in or sign upPrebiotics
1.4g
Xylooligosaccharides (XOS) are prebiotic fibers that nourish beneficial gut bacteria, like Bifidobacterium, while promoting the production of byproducts like short-chain fatty acids. These processes support the maintenance of a balanced gut microbiome and contribute to overall digestive health. [2]
Short-Chain Fatty Acid
1725mg
Short-chain fatty acids (SCFAs) are beneficial compounds produced when healthy gut bacteria break down certain types of fiber. Butyric acid is a short-chain fatty acid that supports the health of the intestinal lining. It plays a role in maintaining the integrity of the gut barrier and promoting a healthy immune response in the intestines. [3]
Cranberry
225mg
Cranberries contain unique compounds like proanthocyanidins (PACs) and polyphenols that may support gut health by promoting beneficial bacteria, reducing the adhesion of harmful microbes, and enhancing gut barrier integrity. [4]
Vitamin E
600mg
Vitamin E (as acetate) is a fat-soluble antioxidant that supports the overall health of the gut by reducing oxidative stress and inflammation. It helps protect the cells of the digestive tract from damage and supports gut function.

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Warnings
Do Not Take With: Antibiotics without consulting a healthcare provider, as they may interact with the effectiveness of the probiotics.
Do Not Take If: You are pregnant, breastfeeding, or have any known allergies to cranberry or any of the probiotic strains. Consult with a healthcare provider if you have a medical condition, particularly related to the gut, or are on medications that affect blood sugar or cholesterol.
Lifestyle Improvements
Your gut isn’t just where digestion happens. It’s the foundation of your immune system, mood, metabolism, and even hormone health. If you want to feel better from the inside out, healing your gut is non-negotiable. The Essential Gut Protocol works best when paired with smart, sustainable lifestyle upgrades. Here’s how to get the most out of it:
Eat for Your Microbiome
Your gut bacteria thrive on diversity. Eat a wide variety of colorful, fiber-rich foods, including leafy greens, cruciferous vegetables, berries, legumes, and gluten-free whole grains. Add in prebiotic-rich foods like garlic, onions, leeks, and bananas to feed beneficial bacteria. Don’t forget hydration. Aim for half your body weight in ounces of water daily to support digestion and detoxification.
At the same time, eliminate foods that disrupt the microbiome and inflame the gut lining. This includes highly processed snacks, refined sugar, alcohol, and artificial sweeteners. Your gut can’t heal if it’s under constant assault.
Move to Improve Digestion
Gentle, consistent movement such as walking, yoga, or low-impact cycling helps stimulate digestion and supports regular bowel movements. Aim for 30 minutes of movement each day. Avoid high-intensity workouts right after meals, as they can divert blood flow from digestion and trigger bloating or cramps.
Prioritize Deep, Restorative Sleep
Sleep is when your gut and brain reset. Disrupted sleep patterns can negatively impact your microbiome and slow digestive function. Set a consistent bedtime, limit screen time before bed, and create a dark, cool sleep environment to support melatonin production and circadian balance.
Reduce Stress to Heal the Gut-Brain Axis
Your gut and brain are constantly communicating. Chronic stress can impair digestion, increase gut permeability, and shift your microbiome out of balance. Create daily rituals that calm your nervous system, such as deep breathing, meditation, journaling, or spending time outdoors.
Personalize Through Testing At Parsley, we believe in data-driven care. If you’re still struggling with bloating, constipation, or food sensitivities, ask your provider about functional gut testing. Identifying issues like dysbiosis, parasites, or inflammation allows us to personalize your plan and fast-track healing.
When your lifestyle supports your gut, digestion, energy, skin, and even your mood can improve. Healing truly starts from the inside out.
Disclaimer
These statements have not been evaluated by the Food and Drug Administration. Any products and informational content displayed on this page are not intended to diagnose, treat, cure, or prevent any disease.
While this Protocol has been created by health experts, it is educational in nature and not a substitute for personalized medical advice. Always consult with your healthcare provider before starting any new supplement regimen, especially if you have underlying health conditions or take medications.
- Prajapati, K., Bisani, K., Prajapati, H., & others. (2024). Advances in probiotics research: Mechanisms of action, health benefits, and limitations in applications. Systems Microbiology and Biomanufacturing, 4(4), 386–406. https://doi.org/10.1007/s43393-023-00208-w
- Valladares-Diestra, K. K., de Souza Vandenberghe, L. P., Vieira, S., Goyzueta-Mamani, L. D., de Mattos, P. B. G., Manzoki, M. C., Soccol, V. T., & Soccol, C. R. (2023). The potential of xylooligosaccharides as prebiotics and their sustainable production from agro-industrial by-products. Foods, 12(14), 2681. https://doi.org/10.3390/foods12142681
- Borycka-Kiciak, K., Banasiewicz, T., & Rydzewska, G. (2017). Butyric acid – A well-known molecule revisited. Przegląd Gastroenterologiczny, 12(2), 83–89. https://doi.org/10.5114/pg.2017.68342
- Lessard-Lord, J., Roussel, C., Lupien-Meilleur, J., et al. (2024). Short-term supplementation with cranberry extract modulates gut microbiota in humans and displays a bifidogenic effect. npj Biofilms and Microbiomes, 10(18). https://doi.org/10.1038/s41522-024-00493-w