02/09/2026
🦠 腸道菌也會受到「吃太油」影響!
🍗 長期高脂飲食,不只影響血脂、體重也可能影響我們的:
👉 腸道菌
👉 膽汁酸
👉 腸道代謝物
👉 免疫環境
🦠 吃太油,腸道菌會發生什麼變化?
脂肪吃得多
➡️身體分泌更多膽汁酸幫助消化
➡️部分「嗜膽菌」比較容易生長
➡️腸道菌進一步代謝膽汁酸
➡️產生不同的代謝物
➡️可能影響免疫細胞的活動
有研究發現,某些膽汁酸代謝物可能影響 CD8⁺ T細胞的抗腫瘤功能。
⚠️ 但膽汁酸不是單純「好」或「壞」,不同種類可能有不同作用,目前人體研究仍需要更多證據。
😣 腸道菌失衡,可能出現什麼?
有患者長期:
🔴消化不良
🔴飯後腹脹
檢測後發現「嗜膽菌 Bilophila」比例偏高。
醫師提醒:
真正需要注意的,是長期的飲食型態。
🍗 偶爾吃炸雞、燒肉 → 不必過度焦慮
🍟 長期高油、高度加工飲食 → 才值得調整
🌱 想照顧腸道菌,可以這樣做
🥬 多吃蔬菜
🫘 增加豆類
🌾 選擇全穀類
🥜 適量堅果
🏃 規律運動
😴 睡眠充足
⏰ 維持規律作息
☀️☀️☀️☀️☀️☀️☀️☀️☀️☀️
🦠 Gut bacteria are also affected by a high-fat diet!
🍗 A long-term high-fat diet affects not only blood lipids and body weight but also our:
👉 Gut microbiota
👉 Bile acids
👉 Gut metabolites
👉 Immune environment
🦠 How does a high-fat diet change gut bacteria?
High fat intake
➡️ The body secretes more bile acids to aid digestion
➡️ Certain "bile-loving bacteria" (e.g., Bilophila) thrive more easily
➡️ Gut bacteria further metabolize these bile acids
➡️ Different metabolites are produced
➡️ Immune cell activity may be affected
Studies have found that certain bile acid metabolites can influence the anti-tumor function of CD8⁺ T cells.
⚠️ However, bile acids aren't simply "good" or "bad"; different types have different effects, and more evidence from human studies is needed.
😣 What happens when gut bacteria are out of balance?
Patients with long-term issues such as:
🔴 Indigestion
🔴 Post-meal bloating
Bilophila bacteria are often found to have elevated levels upon testing.
A note from the doctor:
What really matters is your long-term dietary pattern.
🍗 Eating fried chicken or barbecue occasionally → No need to worry excessively
🍟 A long-term diet high in fat and ultra-processed foods → This is what needs adjustment
🌱 Here's how to support your gut bacteria:
🥬 Eat more vegetables
🫘 Increase legume intake
🌾 Choose whole grains
🥜 Eat nuts in moderation
🏃 Exercise regularly
😴 Get enough sleep
⏰ Maintain a regular daily routine
長期吃得太油,不只可能影響血脂、體重,連腸道菌與免疫環境也可能跟著改變。基因醫師張家銘指出,高脂飲食會增加膽汁酸進入腸道,有些腸道菌會進一步...