PROBLEM TO BE SOLVED: To provide a heat stroke preventive that can prevent heat stroke by suppressing increases in body temperature and muscle temperature, suppressing moisture loss in the body, and activating 3-hydroxy acyl CoA dehydrogenase, even if excessive movements such as sports are performed under a high temperature environment, and also provide food products.SOLUTION: A heat stroke preventive comprises oil and fat compositions comprising &alpha；-linolenic acids. A 3-hydroxy acyl CoA dehydrogenase activator comprises oil and fat compositions comprising &alpha；-linolenic acids. There are also provided food products.SELECTED DRAWING: None【課題】高温環境下で、スポーツなどの過度な運動を行っても、体温及び筋肉温度の上昇抑制、体内の水分喪失の抑制、並びに３－ヒドロキシアシルＣｏＡ脱水素酵素を活性化することにより、熱中症を予防することができる熱中症予防剤、及び食品の提供。【解決手段】α－リノレン酸を含む油脂組成物を含有する熱中症予防剤、α－リノレン酸を含む油脂組成物を含有する３－ヒドロキシアシルＣｏＡ脱水素酵素活性化剤、及び食品である。【選択図】なし
