The Gut Duality
Every gut issue is one of two things
Like every system on this site, gut health has a deficiency side and a toxicity side — and most real-world gut concerns are some mix of both at once.
What's missing: low fiber, thin bacteria
Modern diets tend to run low on the fermentable fiber that feeds a diverse, healthy microbiome, and the good bacteria that make vitamins, train the immune system, and hold the line at the gut wall get thinned out along with it. Without the raw material and the residents, the whole system runs on empty.
What's in excess: dysbiosis, endotoxin, permeability
An imbalanced microbiome (dysbiosis), a rise in bacterial endotoxin (LPS) crossing a stressed gut lining, and increased intestinal permeability are the load side of the equation — the gut wall doing more filtering work than it was built for, with less support than it needs.
Synergy, Not Six Separate SKUs
None of these six work in isolation. Meta is the most comprehensive single option here, but its impact is magnified when it's stacked with the others — and foundational, optimal nutrient status underpins every one of your cells' functions, gut included. Think of this less as six separate purchases and more as one adaptive system you build in layers.
The FixGut Protocol
Laid out in order, from an affordable, broad starting point through to more comprehensive and more targeted additions. Start with Step 1. Add layers as your budget and your goals call for it — you do not need all six on day one.
Step 1 — The Foundation
Nu Biome
A daily prebiotic-and-postbiotic starting point for almost everyone.
A once-daily drink stick combining xylooligosaccharides (a prebiotic fiber that feeds beneficial gut bacteria) with a heat-treated postbiotic form of Bifidobacterium animalis BPL1. It is built to support a healthy, balanced gut environment — the foundational layer the rest of this protocol builds on.
Pairs with the foundation — Direct Probiotic
ProBio PCC
Live probiotic strains to sit alongside Nu Biome's prebiotic base.
A daily probiotic delivering researched live cultures (including Lactobacillus paracasei) built to survive digestion and reach the gut. Where Nu Biome feeds the good bacteria, ProBio PCC adds live cultures directly — the two work best as a pair, seeding and feeding the microbiome together.
Step 2 — The Most Comprehensive
Meta
The broadest single option in this protocol — and it's magnified when stacked.
A concentrated anthocyanin blend from black rice, black currant, and bilberry, formulated to support the body's own antioxidant defenses and a healthy response around meals. We call it the most comprehensive piece of this protocol because it works alongside gut-targeted support rather than competing with it — the deeper metabolic and antioxidant layer underneath the more targeted pieces around it.
Step 3 — Gut-Immune Support
Colostrum Defense
Bovine colostrum, a postbiotic, and immune-supporting nutrients in one daily blend.
Bovine colostrum (a natural source of immunoglobulins), a heat-treated postbiotic (LC-Plasma), vitamin C, vitamin D, and prebiotic fiber — built to support the gut lining's normal defenses and the close working relationship between gut health and everyday immune function.
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Step 4 — The Metabolic Bridge
MSmart
Targeted support for a healthy response to carbohydrates and everyday metabolic balance.
Formulated to support a healthy insulin response and normal metabolic balance around meals. Blood-sugar regulation and gut health are closely linked, so this is the metabolic-bridge piece of the protocol — most useful as a targeted add-on once the foundation above is in place.
Step 5 — Endotoxin & Microbiome Support
MitoLife Endotoxin Remover (Flora-Form)
Spore-forming probiotics plus a bacteriophage blend, aimed at gut-barrier and endotoxin support.
A probiotic built on hardy, spore-forming strains (Bacillus subtilis, B. clausii, B. coagulans) together with the PreforPro bacteriophage blend. Early, ingredient-class research on ingredients like these looks at gut-barrier and post-meal endotoxin (LPS) biomarkers — promising, preliminary signal, not proof that any finished product broadly clears endotoxin. We frame it as everyday microbiome and gut-lining support, not a treatment.
Step 6 — The Gut-Immune Bridge
Zinc-Carnosine
A targeted, well-studied compound for the stomach and gut lining — and a bridge into immune support.
Zinc bound to the amino-acid compound carnosine (also called polaprezinc), a form that tends to stay put along the stomach and gut lining. It supports the normal, healthy lining of the stomach and gut and normal zinc status — and because zinc also plays a role in everyday immune-cell signaling, it's the one product in this protocol that bridges straight into gut and immune support together.
Step 7 — The Gut-Brain & Stress Tie
Cortitrol
Supports a healthy cortisol rhythm — because chronic stress hits the gut lining and the microbiome too.
An evening blend of magnolia bark, L-theanine, phosphatidylserine, and plant sterols that supports the body's normal, healthy stress-response and cortisol rhythm. Stress and cortisol run straight through the gut-brain axis, so calming that side supports the gut environment alongside the more direct gut products above. Supports normal function — it is not a treatment for stress, anxiety, or any gut condition.
Targeted vs. Foundational
Not everything here is meant to be a forever-habit
Nu Biome sits closest to a daily foundation — broad, gentle, everyday gut support most people can build on indefinitely. Others, like MSmart, the endotoxin-and-microbiome support, and Zinc-Carnosine, are more targeted: shorter-term, situational support you reach for around a specific goal or a rougher stretch, then reassess. Neither approach is wrong. The point is knowing which kind of tool you're picking up, and not expecting a targeted product to do a foundation's job.
Every product here is covered by the same guarantee
Nu Skin products are backed by a 100% money-back satisfaction guarantee — a straightforward refund, not a promise of a specific health outcome. Ask Ryan or Madeleine which layer of this protocol fits where you're starting from.