Condition protocol
A gut health stack that swaps your probiotic the moment you're on antibiotics
Multi-strain probiotic, psyllium husk, and L-glutamine as the essential core. If antibiotics show up in your medications, the Advisor swaps to an antibiotic-resistant strain automatically.
Multi-strain probiotics have the best evidence for IBS and post-antibiotic recovery, but a standard strain taken alongside antibiotics gets wiped out before it does anything useful. Stack Almanac's Gut Health protocol pairs a multi-strain probiotic with psyllium husk (prebiotic fibre with strong IBS evidence) and L-glutamine (gut lining support from permeability studies) as the essential three.
Digestive enzymes and zinc carnosine sit alongside as optional, more targeted additions: enzymes for specific insufficiencies, zinc carnosine specifically studied for gastric lining protection.
It surfaces automatically once "IBS," "gut," "digestive," or "bloating" appears in your bio profile. If antibiotics are in your medications, the Advisor recommends Saccharomyces boulardii, an antibiotic-resistant probiotic strain, in place of the standard multi-strain formula.
The challenges
Probiotics taken alongside antibiotics mostly die
A standard multi-strain probiotic doesn't survive well against antibiotics taken at the same time. The evidence-backed workaround is a specific antibiotic-resistant strain, not more of the same probiotic.
Psyllium without enough water causes the exact problem it's meant to fix
It's a genuinely well-studied prebiotic fibre, but taken without adequate water it can cause obstruction rather than relief. The dose matters less than the water alongside it.
Strain specificity gets ignored on the label
CFU count is the number everyone looks at. Which strains, and whether they're the ones actually studied for IBS, gets skipped, even though strain specificity is where most of the real evidence lives.
Gut symptoms that need medical attention get treated as a supplement problem
Persistent digestive symptoms deserve a GP visit to rule out conditions that supplements can't touch, not another round of stacking.
How Stack Almanac helps
Three supplements, each doing a distinct job
Multi-strain probiotic 20-50B CFU (strong evidence for IBS and post-antibiotic recovery), psyllium husk 5g (strong evidence, taken with meals and plenty of water), and L-glutamine 5g (moderate evidence, gut lining support) as the essential core.
Antibiotic-aware probiotic swap
Log antibiotics in your bio profile and the Advisor swaps the standard multi-strain formula for Saccharomyces boulardii, a strain specifically resistant to antibiotics, rather than recommending a probiotic that won't survive the course.
Evidence badges instead of marketing copy
Probiotic and psyllium carry strong evidence badges. L-glutamine is moderate. Digestive enzymes and zinc carnosine are moderate too, positioned as targeted add-ons rather than essentials.
Matched to your bio profile automatically
Add "IBS," "gut," "digestive," or "bloating" to your health conditions or primary concerns and this protocol surfaces in your Protocols tab as a match.
The Advisor flags what needs a GP, not a supplement
Persistent or worsening digestive symptoms get pointed toward your GP. The protocol supports gut health alongside dietary changes; it isn't positioned as a fix for conditions that need medical diagnosis.
The Gut Health Protocol
Strong evidence: probiotic, psyllium. Moderate: L-glutamine, digestive enzymes, zinc carnosine. £35–55/mo estimated.
The list above is free. This is what isn't.
- Swaps to an antibiotic-resistant probiotic strain automatically if antibiotics are in your medications.
- Flags the psyllium-and-water interaction before it becomes a problem, not after.
- The Advisor tracks whether it's actually settling your symptoms, not just whether you're taking it.
Free 7-day trial · no credit card required