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紅景天 Rhodiola Rosea × 認知功能
結論：證據分歧
L2 顯示認知終點幾乎都是抗疲勞試驗的次要結果（Darbinyan 2000、Spasov 2000、Shevtsov 2003），效益多由抗疲勞中介而非直接益智作用，且證據陳舊（2000-2011）、樣本小、無 2020 後認知專屬高品質 RCT 或 meta-analysis。
C 🟠 C 薄弱證據 證據分歧 🚨 high — heavy affiliate marketing in TW community
L2 顯示認知終點幾乎都是抗疲勞試驗的次要結果（Darbinyan 2000、Spasov 2000、Shevtsov 2003），效益多由抗疲勞中介而非直接益智作用，且證據陳舊（2000-2011）、樣本小、無 2020 後認知專屬高品質 RCT 或 meta-analysis。
L5b/c/d/e 全數 not_addressed 或無 condition-specific claim，無任何學會背書，NCCIH 亦判 insufficient evidence。
機轉合理（adaptogen 抗壓抗疲勞）加少量人體研究，符合 C（薄弱證據）；Examine 的 A 級被研判為由疲勞中介之注意力替代終點過度膨脹。
⚖️
評分透明度
所有分數由 7 層證據引擎計算，過程公開可查原始分數 0.56
D
C
B
A
S
← 反證據 / 無效有效 / 強證據 →
最終評級
C · 證據分歧
信心度
73%
證據方向大致一致
證據層級
E6
多篇較小型隨機對照試驗
▸查看完整決策路徑（audit trail）
- compute_raw_score — 加權公式: L2×0.30 + L3×0.25 + L5×0.25 + L11×0.10 + L1×0.10 = 0.562
- tier_from_score — 依分數區間映射至 tier letter
- apply_hec_rules — 無高階證據可裁決
- tier_strict_requirement_check — | B→C 因 scope.conflation_risk=true 且 L11 獨評較低 (B7-2 tier cap)
- detect_disputes — 偵測到 1 個 hard + 0 個 soft dispute
- decide_status — 依 tier + dispute 結果決定 status
Rhodiola rosea in stress induced fatigue - a double blind cross-over study of SHR-5 on mental performance of physicians during night duty
結論：Statistically significant improvement in fatigue index in the SHR-5 group during the first 2-week period vs placebo; no side effects (exact p-value not reported in abstract).
前往 PubMed A double-blind, placebo-controlled pilot study of SHR-5 extract on fatigue of students caused by stress during an examination period
結論：SHR-5 group showed significant improvement in physical fitness, mental fatigue and neuro-motoric tests (p<0.01) and self-assessed well-being (p<0.05) vs placebo.
前往 PubMed A randomized trial of two different doses of a SHR-5 Rhodiola rosea extract versus placebo and control of capacity for mental work
結論：Both verum groups had higher AFI (1.0385 and 1.0195) vs placebo (0.9046), p<0.001; no meaningful difference between the two doses.
前往 PubMed Double-blind, placebo-controlled, randomised study of single dose effects of ADAPT-232 on cognitive functions
結論：ADAPT-232 group showed significantly better attention, speed and accuracy (TN-E scores) vs placebo within 2 hours (p<0.05); minor adverse events in both arms.
前往 PubMed The effectiveness and efficacy of Rhodiola rosea L.: a systematic review of randomized clinical trials
結論：Concludes R. rosea may have beneficial effects on mental performance; 5 of 10 RCTs scored >3 on Jadad (good quality) but the review stresses a lack of independent replications; no pooled effect size.
前往 PubMed L4a US FDA
謹慎
Rhodiola rosea 來源↗
L4b EU EFSA
未表態
— 本適應症無對應資料
L4c UK NHS
中性
Rhodiola rosea L. is a plant that grows at high altitudes in the arctic areas of Europe, Asia and North America. It is a traditional herbal medicinal product registered in the UK for the treatment of mental and physical symptoms of stress and overwork, such as fatigue, exhaustion and mild anxiety. 來源↗
L4d TW TFDA / 衛福部
中性
紅景天列於食藥署「可供食品使用原料彙整一覽表」，學名包含 Rhodiola sacra、Rhodiola crenulata、Rhodiola rosea L.、Rhodiola sachalinensis，可供食品使用部位為根。臺灣中藥典亦收載紅景天（景天科大花紅景天之乾燥根及根莖），效能為益氣活血、通脈平喘，分類為補益藥（補氣）。 來源↗
L4e WHO
未表態
— 本適應症無對應資料
L5a NIH Office of Dietary Supplements
謹慎
— 本適應症無對應資料
L5b Mayo Clinic
中性
— 本適應症無對應資料
L5c Cleveland Clinic
中性
— 本適應症無對應資料
L5d Harvard Health
未表態
— 本適應症無對應資料
L5e Specialty Society (condition-mapped)
未表態
not a single food, beverage, ingredient, vitamin or supplement has been proven to prevent, treat or cure Alzheimer's disease or to benefit cognitive function or brain health. 來源↗
PTT · Dcard · Mobile01 彙整自公開論壇討論，非統計抽樣，僅反映社群風向。
廣告 / 業配密度 極高
低中高
📍立場總覽
台灣社群（PTT Hiking/regimen、Mobile01）對紅景天的討論幾乎全集中在高山症預防與一般抗疲勞/提神，鮮少針對「認知功能/記憶/專注」單獨討論。僅有零星、模糊的「好像可以提神、白天吃較好」說法，缺乏可辨識的腦力改善實測心得。多數較具體的品牌推薦來自痞客邦/部落格業配文，非乾淨社群訊號。
💬社群實感
無共識（針對認知功能幾無專門討論；僅泛泛提及提神/抗疲勞，效果心得分歧且多為間接）
破解迷思 社群最常見的 2 個誤解
✓
事實把紅景天當作「補腦/增強記憶」保健品，但社群實際討論幾乎都是高山症與抗疲勞，認知功能用途屬證據外延伸
✓
事實誤以為晚上吃能放鬆；實際鄉民經驗是有提神感，晚上吃恐影響睡眠
🩹 社群通報的副作用
- 提神感導致晚間服用後不易入睡
- 活血化瘀疑慮：與抗凝/魚油併用或術前可能影響凝血
🏷️ 社群熱議品牌
依論壇被提及頻率，非銷售或品質排序。
- MIHONG（部落格業配文常見，非乾淨社群推薦）
- 中油 紅景天運動飲料（便利商店話題，非保健劑型）
⚠️ 列出僅代表「TW 社群討論度高」，不代表本站推薦或背書。本站不販售任何產品、無導購連結。
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查看 ClaimReview 結構化資料 (JSON-LD)
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