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Joint, skin, bone, gut, vision — supplements that target a specific tissue or system. Evidence ranges from rock-solid (calcium + vitamin D for bone density) to genuinely promising (collagen for skin elasticity) to mostly mechanism-only.
Top picks: Lutein + Zeaxanthin, Probiotics, and Psyllium Husk — full evidence and dosage details below.
Pick the outcome you actually care about for the most relevant supplements.
Support gut health and digestive comfort
See ranked supplements
Reduce joint pain, stiffness, and support mobility
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Support eye health and visual comfort
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Enhance skin, hair, and nail quality
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Strengthen bones and reduce osteoporosis risk across all life stages
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Ranked by how many of this area's outcomes each supplement shows pooled benefit on. Click a row for the per-outcome breakdown.
Efficacy and safety of interventions for Fibromyalgia syndrome comorbid with Irritable bowel syndrome: systematic review
2026 · Clinical rheumatology · meta-analysis
Plant-Derived Treatments for IBS: Clinical Outcomes, Mechanistic Insights, and Their Position in International Guidelines
2026 · Nutrients · review
Probiotic-Driven Competitive Exclusion in the Human Gut: A Meta-Analysis of Microbial Diversity and Pathogen Suppression
2026 · Nutrients · meta-analysis
The Complementary and Alternative Roles of Curcumin in Treatment of Ulcerative Colitis: An Umbrella Review
2026 · Nutrition reviews · systematic-review
Congrong Runtong oral liquid for functional constipation: A multicenter, placebo-controlled phase II trial
2026 · Phytomedicine : international journal of phytotherapy and phytopharmacology · rct
Practical, evidence-tiered guides on these topics.
AREDS2 works for diagnosed AMD; lutein/screen-strain claims are weaker. Who actually benefits.
Probiotics vs prebiotics vs synbiotics, the CFU myth, and what actually helps bloating.
Curcumin, omega-3, UC-II collagen, Boswellia vs the old glucosamine default — and OA vs RA.
Modest-but-real for skin, growing for joints, weak for hair/nails — plus which type to buy.
Worth it if you’re deficient (and many are) — dosing, testing, D3 vs D2, and the K2 question.
Trendy, plausible mechanism, thin adult evidence — the honest hype check.
Pick your specific goals and we'll match supplements based on the evidence for each one.
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