Fiber & Psyllium: The Complete Guide
25–30g from food first, when a husk capsule helps LDL and regularity, and how not to brick your gut
Most longevity stacks skip the cheapest metabolic lever: dietary fiber. Psyllium husk has actual outcome data for LDL and satiety. This guide covers food sources, titration, water, drug spacing, and a labeled capsule option — not orange drink mix.
Health Disclaimer
This content is for general informational and educational purposes only. It is not medical advice, diagnosis, or treatment. Consult a qualified healthcare provider before starting any supplement, peptide, or health protocol. Read our full health disclaimer.
Frequency
Daily with water
Duration
Ongoing
Level
Beginner
Key Takeaways
- 1Target 25–35g/day from beans, oats, veg, fruit, and flax before powder
- 2Psyllium is viscous soluble fiber — useful for LDL and regularity when food falls short
- 3Water is not optional; dry capsules are how people get impacted
- 4Separate from some medications by 2+ hours
Who this is for
- ·People under 20g fiber/day
- ·ApoB work that still needs a grocery change
- ·Constipation on low-carb or GLP-1
Food First
Strong EvidenceBeans, lentils, oats, barley, chia/flax, berries, and greens do more than a capsule. Greger’s Daily Dozen is a fiber protocol in disguise.
If you will not eat legumes, psyllium is a reasonable bridge — not a personality.
When Psyllium Helps
Strong EvidenceMeta-analyses support modest LDL reductions and better stool form. Start at half a serving with a full glass of water, increase over a week.
Double Wood 1,500mg capsules are an unflavored Amazon option. Powder is cheaper per gram if you will mix it.
Safety
Moderate EvidenceSwallowing disorders, bowel obstruction, and inadequate fluid are hard no’s. Space from drugs. Titrate or you will hate fiber forever.
As an Amazon Associate, Reo Tuku Iho Limited earns from qualifying purchases through Amazon links on this site. Full disclosure
For educational purposes only. Not medical advice. Read our health disclaimer.
Sources
Key references cited in this guide. Links open the original publication or abstract.
- Psyllium and LDL cholesterol — meta-analysesAm J Clin Nutr, 2018
Continue Reading
SupplementsMichael Greger & How Not to Die: The Complete Guide
How Not to Die (2015) is NutritionFacts.org in hardcover: fifteen causes of death and the plant foods Greger wants on your plate. The Daily Dozen is the useful protocol. This guide separates strong diet-pattern evidence from ‘reverse disease with broccoli’ headlines and links the book plus olive oil, fiber, and matcha.
Read guide
Diagnostics & TestingApoB & Lipids for Longevity: The Complete Guide
Cardiovascular disease remains a top killer; lipid panels are the cheapest longevity blood test most people skip interpreting correctly. This guide explains ApoB vs LDL-C, Lp(a), and lifestyle plus supplement levers — not statin prescribing.
Read guide
Diagnostics & TestingGut Microbiome: The Complete Guide
Your gut microbiome, 100 trillion bacteria, influences immunity, mood, metabolism, and inflammation. Bryan Johnson tests his monthly. This guide covers microbiome testing, evidence-based interventions, and what actually moves the needle vs marketing.
Read guideSupplementsProbiotics: Strains, Evidence, and What Actually Works
The probiotic market is a $60B mess of underdosed, poorly studied products. But specific strains with clinical trial data can meaningfully support gut health, immune function, and even mood. This guide cuts through marketing to cover evidence-backed strains, dosing in CFUs, spore vs conventional probiotics, and when testing beats guessing.
Read guide
Wearables & TrackersGlucose Spike Control: The Complete Guide
Glucose spikes after meals drive inflammation and metabolic stress — even in non-diabetics. CGM culture made this visible. This guide covers behavioral hacks (walk, fiber first, vinegar), when berberine fits, and how to use a monitor without ruining your relationship with food.
Read guide
PeptidesGLP-1 Agonists: The Complete Guide
GLP-1 receptor agonists (semaglutide, liraglutide) and dual agonists (tirzepatide) moved from diabetes clinics into mainstream weight and metabolic culture. For biohackers, the live questions are muscle loss, rebound weight, nutrient quality, and whether a peptide drug belongs next to Zone 2 and protein. This is a map of the evidence — not a shortcut to a vial.
Read guideLast updated: 2026-09-21 · For informational purposes only. Not medical advice. Consult a healthcare provider before starting any new health protocol. Health disclaimer.