Evidence-Based Educational Tool

What does research say about your antibiotic and gut recovery?

Answer four quick questions. See what published research describes for your antibiotic class, how disruption unfolds, and what recovery involves.

Cites PubMed / NIH Not a diagnosis No medical claims
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Four quick questions

Please note. General educational information based on published research about antibiotic classes. Not a medical assessment, diagnosis, or advice to start or stop treatment. Symptoms vary and many people have none. Always consult your doctor.
1Your antibiotic class
Class
—
Illustrative reduction in gut diversity research associates with this class, at its lowest point.
—
Typical window over which research describes partial recovery, with wide individual variation.
Typical spectrum of this class
NarrowModerateBroad
Your antibiotic class Narrow-spectrum reference
2How disruption unfolds
Gut bacterial diversity over time
Drag the slider. Scaled to the disruption depth research describes for your class. A general illustration, not an image of your gut.
Before the courseA diverse, balanced bacterial community.
Relative diversity (illustrative)100%
BeforeDays 1-3DuringJust afterWeeks afterMonths after
3What research describes
General research on this class
Class-level findings. Not a measurement of you.

Bacterial groups research associates with reduction
4Commonly reported symptoms
What people commonly report
General patterns from the literature. Educational context, not an assessment of your symptoms.
Usually self-limiting

Mild bloating, gas, irregular bowels, mild fatigue and appetite changes are described as commonly reported and, in most studied individuals, settling over days to a few weeks as the gut rebalances.

See a doctor — not normal recovery

Some symptoms are not ordinary recovery and need prompt attention: severe or persistent watery diarrhoea, blood or mucus in stool, severe abdominal pain, fever, persistent vomiting, or dehydration. These can signal C. difficile or another condition. Contact a doctor promptly.

Frequency and time course vary widely, and many people have few or no symptoms. These bands describe general research patterns and red-flag guidance, not a rating of your situation. Always consult your doctor.
5The literature, in numbers
Selected findings
General published findings about research populations. Educational context, not about you.
~30%
of species-level gut bacteria did not return to baseline by 6 months after one broad-spectrum course, in a widely cited study.
Palleja et al., Nature Microbiology 2018
3 to 4 days
is how quickly measurable diversity reductions have been detected after starting some antibiotics.
Dethlefsen & Relman, PNAS 2011
Up to 2 yr
is how long altered community composition has been detected after clindamycin in some individuals.
Jernberg et al., ISME Journal 2007
5 to 39%
is the reported range for antibiotic-associated diarrhoea incidence across agents in reviews.
McFarland, reviews on AAD
Months
is how long partial reconstitution commonly takes, with substantial individual variation.
Palleja et al., Nature Microbiology 2018
Varies
widely. Prior exposure, age, diet and course length all shape the pattern and pace.
Dethlefsen & Relman, PNAS 2011
Findings from research populations under specific study conditions. General educational context; they do not predict any individual outcome.
6What influences recovery
Factors research associates with recovery
General modifiers from the literature. Educational context, not advice for you.
↻
Prior exposure
Repeated courses close together are linked to deeper cumulative shifts and slower recovery.
⏳
Course length
Longer courses are associated with disruption accumulating over the duration.
🍱
Diet and fibre
Fibre intake influences the bacterial groups that ferment it, among those affected.
◠
Age
Recovery patterns differ across ages; some studies report slower reconstitution later in life.
⚛
Class and spectrum
Broader-spectrum agents are linked to wider and longer-lasting reductions.
◎
Your baseline
Each person starts from a different community, one reason responses vary so much.
7Three mechanisms
Recovery is more than bacteria
Three connected processes research describes. General context, not a treatment claim.
MECHANISM 01
Microbial depletion
Beneficial groups are reduced. The space they held can be taken by less desirable organisms, which research links to common digestive symptoms.
MECHANISM 02
Mucosal changes
The gut lining can be affected: thinner mucus and a weaker barrier are described. This is structural, part of why bacteria alone are not the whole picture.
MECHANISM 03
Energy supply
Gut-lining cells rely on fuel (short-chain fatty acids) made by certain bacteria. When those are depleted, research describes reduced energy to the cells that repair the gut.
8The recovery curve
Recovery trajectories in research
Illustrative curves for your class. Not individual measurements and not an efficacy claim for any product.
Typical unsupported trajectory Pattern with structured recovery support
9Your timing window
Based on your selections
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Phase 1 · Days 1 to 3
Stabilisation window
The first 72 hours, when competition for newly available intestinal space is most active. Day-by-day food, hydration and timing guidance.
Phase 2 · Days 4 to 7
Active reconstitution
Recommended foods, prebiotic sources, what to avoid, and simple tracking to follow recovery.
Phase 3 · Days 8 to 14
Mucosal repair
Where the gut lining undergoes measurable change in research. A detailed daily protocol for this window.
Beyond Day 14
Maintenance and red flags
What to expect after, which symptoms warrant a doctor, and how to maintain gains.
Limited Phase 1 access
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Aegis Protocol™ is a nutraceutical dietary supplement. It is not intended to diagnose, treat, cure, or prevent any disease. Everything on this page is general educational information based on published research describing antibiotic classes; it is not a personal medical assessment, not a diagnosis, and not a claim that any product produces a specific health outcome. Individual experiences vary and many people have no symptoms. Consult your physician about your specific situation.