Kombu-powder cookies boiled for 60 minutes to reduce iodine,
does it really help with Lower blood pressure in adults with overweight?
research showsThe grade is C with 46 points. A 12-week trial randomized 44 adults and 41 completed; the per-protocol analysis included 21 receiving kombu-powder cookies boiled for 60 minutes to reduce iodine and 20 controls. Blood pressure was lower at selected visits. The registered primary visceral-fat endpoint did not improve, and blood pressure was not even a registered secondary endpoint but an exploratory result from a general measurement item.
ads claimThis result cannot be transferred to ordinary kombu intake. The test food was kombu-powder cookies boiled for 60 minutes to reduce iodine, with measured iodine of 70 micrograms per cookie and 420 micrograms/day. General kombu values are much higher and variable. Verdict 091 is C with 50 points for fucoidan, and verdict 308 is C with 48 points for fermented kelp extract; both differ in form and claim.
Useful facts when choosing a product
- The paper dose was 0.98 g per cookie times six, 5.88 g/day, whereas the registry specified 1 g times six, 6 g/day.
- The 70 micrograms per cookie and 420 micrograms/day iodine values belong to this iodine-reduced test product, not ordinary kombu.
- The finding cannot be generalized to ordinary kombu intake. Product sodium was not reported.
Chamgap Semantic Classification Code
Candidate index · review held
S.cookies-providing-kombu-powder-boiled.UNK.blood-pressure-with-overweight.reduce.UNKSupplements and nutraceuticals > Cookies providing kombu powder boiled > Unknown > blood pressure with overweight > Reduction claim > Unknown
An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.
What the research actually shows
Forty-four adults were randomized and 41 completed; the per-protocol analysis included 21 receiving kombu-powder cookies boiled for 60 minutes to reduce iodine and 20 controls. The paper dose was 0.98 g per cookie times six, 5.88 g/day, versus the registry's 1 g times six, 6 g/day. Registered primary visceral fat was null overall, and blood pressure was a general measurement rather than a registered secondary endpoint. Support came from the Hokkaido Federation of Fisheries Cooperative Associations and Otsuma grant N2301; authors were affiliated with Maruyanagi Oguraya and the contracted research organization CPCC. The authors declared no conflicts of interest.
Why this is classified as C (46)
A surrogate blood-pressure endpoint, one 44-person industry-linked trial, a 41-person completer analysis, a null registered primary endpoint, and uninterpretable clinical effect size give C with 46 points.
Counterpoint. This verdict applies to kombu-powder cookies boiled for 60 minutes to reduce iodine and cannot be generalized to ordinary kombu intake.
Rejudgment record. Editor ruling applied — The registered primary visceral-fat endpoint was null and blood pressure was not a registered secondary endpoint; exploratory status, specialized product, per-protocol analysis, and unrecoverable effect interval were reflected
| Endpoint | S | Surrogate marker - laboratory or imaging measures |
| Replication | R1 | Single confirmatory trial |
| Independence | I0 | Evidence comes only from manufacturer studies |
| Effect size | EX | The clinical size of the effect could not be judged |
Stored derived and displayed grades match; this is not a current recalculation or validity check (C).
Sub-claim grades by effect
This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.
| Effect (sub-claim) | Grade | Basis |
|---|---|---|
| Lower blood pressure from kombu-powder cookies boiled for 60 minutes to reduce iodine | C | The registered primary was null; blood pressure was not a registered secondary endpoint, and its treatment-effect CI could not be recovered. |
Cross-check — AI research and Codex final gate
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Aoe et al. 2025 | Twelve-week randomized double-blind cellulose-cookie-controlled trial | 44 randomized, 41 completed, and 21 versus 20 in per-protocol analysis | Hokkaido fisheries cooperative federation and Otsuma N2301 support; Maruyanagi Oguraya and CPCC affiliations; authors declared no conflicts | Registered primary visceral fat null; blood pressure was an unregistered general measurement | Blood-pressure differences at selected visits; absent numeric labels prevented recovery of the ANCOVA treatment-effect CI | Unregistered exploratory signal for a specialized product |
Receipt — 2 References
All 2 cited sources were verified for existence at the original page (as of 2026-08-03).
Final verification and publication gate: Codex · Evidence date: 2026-08-03 · Corrections: none
Cite this verdict
[Chamgap] Kombu-powder cookies boiled for 60 minutes to reduce iodine x lower blood pressure — Evidence Grade C·46. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/heart/deiodized-kombu-cookie-blood-pressure/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
What this document does and does not do
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