Prebiotics
Gut HealthKey Benefits
How It Works
Prebiotic fibres (inulin, FOS, GOS, resistant starch) are selectively fermented by beneficial bacteria (Bifidobacterium, Lactobacillus) in the colon, producing short-chain fatty acids that nourish colonocytes, reduce gut pH (inhibiting pathogens), and improve mineral absorption.
Dosage & Timing
Recommended Dosage
5-15 g daily (start low, increase gradually)
Best Time to Take
With meals, any time of day. Start with 3g and increase slowly.
Recommended Form
Partially hydrolysed guar gum (Sunfiber) or inulin/FOS blend
Side Effects
Bloating, gas, and GI discomfort, especially when starting. Start low and increase over 2 weeks.
Drug Interactions
Generally safe with medications. May affect blood sugar control slightly.
What Does The Research Say?
Research shows increased Bifidobacterium counts, improved calcium and magnesium absorption, and enhanced immune markers. More predictable benefits than probiotics for many people. Often overlooked in favour of probiotics.
Where to Buy
Buy Prebiotics on Amazon
Compare prices and read reviews →
Pair Supplements With Smart Training
RYVVA tracks your workouts, nutrition, and recovery — so your supplements fuel real progress.
Try RYVVA Free →Testosterone Support From Voy
UK-based TRT and hormone optimisation. Clinician-led, delivered to your door. Blood tests, prescriptions, and ongoing monitoring.
Learn More at Voy →Try Space Goods
Nootropic mushroom blends for focus, energy, and calm. Lion\'s Mane, Cordyceps, Ashwagandha in one daily drink.
Shop Space Goods →LA Muscle Supplements
Premium sports nutrition — protein, pre-workout, testosterone boosters, and fat burners. UK-made.
Shop LA Muscle →Healthy Meals Delivered
Chef-prepared, macro-balanced meals delivered to your door. Perfect for hitting your nutrition goals.
Try Simmer Eats →Horace — Men's Skincare
Premium French skincare for men. Natural ingredients, no fuss. Cleansers, moisturisers, and grooming essentials.
Shop Horace →Vitality Health Insurance
Rewards you for being healthy. Gym discounts, Apple Watch deals, and wellness perks with your health cover.
Get a Vitality quote →Huel — Complete Nutrition
Nutritionally complete meals, shakes, and bars. 26 vitamins and minerals in every serving.
Try Huel →This information is for educational purposes only and does not constitute medical advice. Researched by the editorial team at NexoraOS, supplement user since 2018. Always consult a qualified healthcare professional before starting any supplement. Individual results may vary. Amazon links are affiliate links.