Research review priorities
Supplement research priorities
These are research priorities, not recommendations. We selected decisions where public interest, plausible benefit, evidence maturity, and safety stakes make a careful synthesis especially useful.
- priority dossiers
- 148
- claim-level questions
- 444
- study extraction underway
- 148
01 / PRIORITY
How priorities were selected
Priority reflects relevance to healthy aging, frequency of real-world use, maturity of human evidence, the cost of a wrong decision, and the need to separate a valid narrow use from broader marketing claims. It does not rank efficacy or imply that everyone should take the product.
02 / EXTRACTION
What happens next
For every question, we screen the PubMed candidate set, connect multiple publications from the same trial, extract population, dose, comparator, duration, outcomes, harms, and funding, then synthesize supportive, mixed, negative, and safety findings together.
Only screened studies enter audited study and participant totals. Search-result counts and the papers listed here as questions never become evidence by themselves.Alpha-galactosidase
- Review stage
- Extracting studies
- audited research papers
- 3
Why this is a research priority
Alpha-galactosidase can reduce fermentation after selected meals, but pediatric symptom signals conflict with two IBS trials and gastrointestinal withdrawals matter.
Questions being reviewed
- Does alpha-galactosidase reduce gas and symptoms after meals with alpha-galactoside-rich foods?
- Does it improve validated IBS endpoints rather than only breath gas or selected symptoms?
- Which enzyme units, meals, ages, and adverse-effect patterns define appropriate use?
Oral rehydration salts
- Review stage
- Extracting studies
- audited research papers
- 2
Why this is a research priority
Correctly formulated ORS is effective first-line treatment for appropriate diarrheal dehydration, but concentration, preparation accuracy, vomiting, malnutrition, cholera, and severe dehydration change management.
Questions being reviewed
- When is oral rehydration as effective and safe as intravenous therapy, and when is rescue required?
- How do reduced-osmolarity, standard, rice-based, and special-population formulations differ?
- What exact mixing, ongoing-loss replacement, feeding, vomiting, and red-flag instructions prevent harm?
L-theanine
- Review stage
- Extracting studies
- audited research papers
- 2
Why this is a research priority
Small trials show selective self-report, biomarker, or attention effects, often with industry involvement, without establishing treatment of anxiety, insomnia, or cognitive impairment.
Questions being reviewed
- Does L-theanine reduce clinically meaningful stress or anxiety beyond acute biomarkers and self-ratings?
- Which attention or cognitive effects replicate in ordinary rested populations and daily life?
- Does 200 mg improve objective sleep, and what are the dose, duration, blood-pressure, and interaction limits?
Glycine
- Review stage
- Extracting studies
- audited research papers
- 1
Why this is a research priority
Sleep marketing rests on a few very small or incompletely reported studies from a narrow research group, while glycine-rich blends cannot isolate glycine's effect.
Questions being reviewed
- Does 3 g bedtime glycine improve objective sleep, subjective sleep quality, or only selected next-day measures?
- Are findings replicated in adequately powered trials independent of ingredient manufacturers?
- What dose, duration, gastrointestinal tolerance, medicine interactions, and medical-condition limits apply?
Valerian
- Review stage
- Extracting studies
- audited research papers
- 2
Why this is a research priority
Broad review evidence does not establish insomnia efficacy despite occasional positive subjective or small-trial results, and extracts are not interchangeable.
Questions being reviewed
- Does valerian improve validated insomnia outcomes and objective sleep rather than subjective quality alone?
- Which standardized extract, dose, timing, and duration are supported and independently replicated?
- What next-day sedation, driving, alcohol, medicine, liver, pregnancy, and withdrawal cautions apply?
03 / SOURCES
Research standards
The review begins with federal evidence summaries and PubMed records, then moves to trial-level extraction. Product claims or another publisher’s evidence grade are not copied into the ledger.