
State Health
- 2018年4月23日
吃維他命B群可以改善疲勞 有科學理由支持嗎?
若仔細觀察,市面上販售的「提神或能量飲料」,都有添加維他命B群。其實它是泛指一群水溶性的維他命,營養學上主要分為八種,包括:(1)維他命B1(又稱硫胺素);(2)維他命B2(又稱核黃素);(3)維他命B3(又稱菸鹼素);(4)維他命B6;(5)葉酸;(6)維他命B12;(7)生物素;(8)泛酸(又稱本多酸)。 正因為維他命的種類非常多種,因此我們簡稱以上八種水溶性維他命為「維他命B群」(Vitamin B Complex)。這些維他命對人體的生理功能非常重要,簡單來說,主要是讓人體的代謝正常,維持正常生理機能。尤其,當我們講到有助於「降低疲勞感」及「恢復精神」時,在這當中最受矚目的生理功能,莫過於多數維他命B群都參與能量的「代謝與轉換」。我們從日常飲食中吃進去的「脂肪」、「蛋白質」及「碳水化合物」,這些能夠產生熱量的「三大營養素」,必須經過「代謝」(Metabolism),轉化為能量,才能有效地被身體利用,以滿足日常的生理活動,維持生命。 生理上,攝取足夠的維他命B群,可以維持身體正常的能量代謝,避免因「維他命B群缺乏」引起「疲勞感」的發生。 如

State Health
- 2018年4月1日
嚴防腦力退化(下) 智膳護甲狀腺功能
對於甲狀腺素分泌過低而導致記憶力、思考能力減慢等腦退化症狀,除利用藥物治理及調整生活作息外,從膳食上多加關注營養均衡,維持良好的飲食習慣,亦是有利甲狀腺系統分泌平衡的關鍵因素,並且能舒緩此症帶來的不適。 分泌不足損記憶力
甲狀腺分泌系統涉及身體多個器官機能可否運作正常,對於維持人體健康極為重要。因為甲狀腺素分泌會經由血管並藉血液循環,影響體內各組織的新陳代謝快慢速率。 高級營養師黃榮俊(見圖)說:「當甲狀腺素分泌不足時,不但可影響記憶及思考能力,更會容易令人有疲倦、貧血、腸胃功能轉差等問題出現。治療上以補充口服甲狀腺素為主,但如能在生活習慣上加以配合,包括戒煙、戒酒、保持每日進行三十分鐘運動,以及每日也有充足睡眠休息時間等,均有助患者改善相關症狀。」 影響系統平衡飲食
飲食方面,黃榮俊建議正常人當然須維持飲食均衡習慣,至於甲狀腺素分泌異常患者則須加倍留意膳食的選擇,因為某些食材的營養素可影響甲狀腺素分泌量,以及干擾此症相關藥物的藥效,當中包括以下五類食物。 ‧糖類食品
對於甲狀腺異常人士而言,需要注意自身的血糖水平,避免食用含有
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