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This Cheap Supplement Heals Leaky Gut After Just ONE DOSE

2026-03-12 Education
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Felix Harder
Felix Harder
173.0k subscribers

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Description

► *Free Resources* The Vitamins That Cured My Chronic Fatigue: https://www.felixharder.net/vitaminlist Liver Detox Guide: https://www.felixharder.net/liver ► *My Programs* Chronic Fatigue Recovery & Practitioner List: https://www.felixharder.net/program Detox Masterclass: https://www.felixharder.net/detox Copper Toxicity Masterclass: https://www.felixharder.net/copper ► *Health Products I Use* Mineral Hair Analysis: https://www.felixharder.net/htma Favorite Magnesium: https://rnareset.com/products/remag-liquid-magnesium?ref=kjcjymfp (code FELIX10 for 10% discount) VNS device: https://www.nurosym.com/FELIX81950 (link includes 5% discount) Sauna (Europe): https://redlightsauna.eu/product/near-infrared-sauna-panel/ (code FELIX10 for 10% discount) Sauna (US): https://theelevateinstitute.com/product/near-infrared-sauna-2/?affiliates=7 (code FELIX10 for 10% discount) ► *Timestamps* 00:00 Introduction 03:28 Using A Fitness Supplement For Gut Health 06:11 Gut Healing Effects Explained 07:50 Dosing & Other Leaky Gut Supplements Disclaimer: This video is for educational purposes only and does not constitute medical advice. Always seek the advice of your physician.

Top Comments (10)

@madstork91 2026-03-12

I started taking L-Citrulline and with monitoring and the supervision of my cardiologist I have been able to reduce blood pressure medication. Not even a joke. I noticed that my BP crashed after eating watermelons and I decided to try it. After two weeks it dropped pretty low. I called in, made an appt, and talked out trying to reduce meds. Turns out it has a ton to do with nitric oxide production. It has done some pretty interesting things to my gut, too. I think this is probably the second biggest supplement after Magnesium for me.

234 26 replies
@chade8888 2026-03-13

Felix explores how L-citrulline, a common fitness supplement typically used for muscle pumps, can effectively treat leaky gut by improving blood flow (0:30-3:30). Contrary to the belief that gut healing takes months of protocols, the video highlights a study showing significant effects from just one single 10-gram dose (0:15). Key takeaways from the study: • Mechanism of Action: Citrulline increases arginine levels, which boosts nitric oxide, relaxing blood vessels and improving blood flow to the intestines (2:30-3:30). • Damage Prevention: During intense stress or exercise, blood is often diverted away from the gut. Citrulline prevents this drop in blood flow, thereby preventing damage to the gut lining before it happens (3:52-4:40). • Reduced Markers of Injury: A marker for gut cell injury (IFABP) spiked in the placebo group during exercise but was dramatically lower in the group taking citrulline (4:42-5:18). Application and Recommendations: • Who can benefit: Those experiencing gut issues related to intense exercise, heat, stress, or chronic sympathetic nervous system activation (6:40-7:20). • Dosage: While the study used 10g, 3 to 6 grams is suggested for everyday use (7:50-8:00). • Stacking: Citrulline can be paired with Glutamine (as fuel for cells), Zinc Carnosine (for lining repair), or Collagen/Gelatin (as raw material) for enhanced results (8:30-9:41).

146 12 replies
@new4friends 2026-03-13

Thank you for always naming the subject of your talk early in your videos. I always watch to the end since I also like your clear explanations.

123 4 replies
@suzannehodgkins7197 2026-03-13

Felix, I've been following for awhile now, but just wanted to say that I appreciate your work. Thank you.

51
@felix-harder 2026-02-13

► *Free Resources* The Vitamins That Cured My Chronic Fatigue: https://www.felixharder.net/vitaminlist Liver Detox Guide: https://www.felixharder.net/liver ► *My Programs* Chronic Fatigue Recovery & Practitioner List: https://www.felixharder.net/program Detox Masterclass: https://www.felixharder.net/detox Copper Toxicity Masterclass: https://www.felixharder.net/copper ► *Health Products I Use* Mineral Hair Analysis: https://www.felixharder.net/htma Favorite Magnesium: https://rnareset.com/products/remag-liquid-magnesium?ref=kjcjymfp (code FELIX10 for 10% discount) VNS device: https://www.nurosym.com/FELIX81950 (link includes 5% discount) Sauna (Europe): https://redlightsauna.eu/product/near-infrared-sauna-panel/ (code FELIX10 for 10% discount) Sauna (US): https://theelevateinstitute.com/product/near-infrared-sauna-2/?affiliates=7 (code FELIX10 for 10% discount)

30 4 replies
@cghrios783 2026-03-13

L Citrullibe 3 to 6 grams L Glutamine Zinc Carnosine Collagen/Gelatin

28 2 replies
@shaan07661 2026-03-13

Felix is one of those people whom you must follow if health is important for you❤❤❤❤

19
@Rad_B_OLand 2026-03-13

You know what else the gut loves? Real Butter! Butter has butyrate in it. 80% of the nutrient the gut needs is butyrate. Throw those plant butters in the garbage and give your gut what it needs, REAL BUTTER!

17 2 replies
@jaybanks7718 2026-03-13

Umm, I just happened to run across a mouse study a few days ago on colitis. In mice, you can turn it on using an L-serine restricted diet. It seems L-serine controls the mucus lining of the intestines, and if it is restricted, it loses its mucus lining. I didn't spend a lot of time researching it, and it was a mouse study. But it was pretty amazing how they could just turn colitis on and off with one amino acid.

17
@katipohl2431 2026-03-13

Citrulline 10g single dose

12

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