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1、 Nutrition&CancerYour Health From：陈陈佳婧佳婧What is my topic talk about？Walk through the basics of nutrition,how eating disorders develop,and learn the benefits of various diets.C CO ON NT TE EN NT TS SThe Cancer Food and Cancer Healthful Nutrition Basic NutritionPart Basic NutritiononeTypes of Nutrient
2、sMacro-Nutrients essential for human survival and growthCarbohydrates（糖类）Proteins（蛋白质）FatsWaterMicro-Nutrients essential for growth and enhance the function and usability of macro-nutrientsVitaminsMinerals（矿物质）The difference between macro and micro nutrients is the amount your need each day.Macro-nu
3、trients must exceed one gram perday.CarbohydratesProvide energy for your body by converting to glucose.Three types of carbohydrates:1.Simple one or two units of sugar2.Complex more than two units of sugar3.Dietary fiber complex carbohydrates that are not a source of energy and add no calories to you
4、r diet.Protect your muscles.Regulate the amount of sugar circulating in your body.Assist in the bodys absorption of calcium.May help lower cholesterol levels and regulate blood pressure.Vitamins and MineralsVitamins and minerals act as regulators and catalysts for a variety of bodily functions.Vitam
5、ins are essential for:Building body tissues such as bones,skin,glands,nerves,and blood.Assisting in the metabolizing of proteins,fats,and carbohydrates so you receive energy from food.Promoting healingPreventing nutritional deficiency diseases.Minerals are essential for:The formation of strong bones
6、 and teethHelping to control the nervous systemFluid balance in tissuesMuscle contractionsMinerals and most vitamins must be supplied through diet since they are not made in the body.WaterYour overall body is between 70-80%water.Your muscles are about 75%waterYour body needs water to:Digest foodCarr
7、y waste products out of your bodyRegulate body temperatureLubricate moving partsYour body does not store water so you must take in a new supply every day.The National Research Councils Food and Nutrition Board recommends one milliliter(ml)of water for each calories of food we consume.Part The Cancer
8、TwoCancerThe term cancer includes a group of neoplastic diseases in which there is a change of normal body cells into malignant onesThis most likely involves some change in the persons genetic material(DNA/RNA)These changed cells pass on this“incorrect”information to their offspring and grow in an s
9、trange and destructive wayCurrent AdviceWe know that diet and nutrition play a role in determining cancer risk.However,the evidence beyond that is unclear.Diet related research is very difficult to conduct with the multiple relationships and differences in individual behaviors Current AdviceWe still
10、 do not know what to eat to decrease our risk of cancer Healthy eating,following Eating Well with Canadas Food Guide will provide many health benefits.However,eliminating or adding specific foods will unlikely have a substantial impact on cancer deaths.PartFood and CancerThreeHow are Food and Cancer
11、 Related?Effects of the cancer itselfJust by having cancer you have higher nutritional needsEffects of treatmentSide effects of treatment These include:nausea,vomiting,taste change,dry mouth,thick saliva,poor appetite,wasting,diarrhea,constipationAre there foods that cause cancer?Are there foods tha
12、t cause cancer?salted fish（咸鱼）（咸鱼）咸鱼产生的二甲基亚硝酸盐，咸鱼产生的二甲基亚硝酸盐，在体内可以转化为致癌物质二在体内可以转化为致癌物质二甲基亚硝酸胺。虾酱、咸蛋、甲基亚硝酸胺。虾酱、咸蛋、咸菜、腊肠、火腿、熏猪肉同咸菜、腊肠、火腿、熏猪肉同样含有致癌物质，应尽量少吃样含有致癌物质，应尽量少吃Barbecue（烧烤）（烧烤）烤牛肉、烤鸭、烤羊肉、烤鹅、烤牛肉、烤鸭、烤羊肉、烤鹅、烤乳猪、烤羊肉串等，因含有烤乳猪、烤羊肉串等，因含有强致癌物不宜多吃。强致癌物不宜多吃。Are there foods that cause cancer?Are there food
13、s that cause cancer?Ham+Sour milk beverage（火腿火腿+乳酸饮料乳酸饮料）三明治中的火腿、培根等和乳酸饮三明治中的火腿、培根等和乳酸饮料一起食用易致癌。为了保存肉制料一起食用易致癌。为了保存肉制品，食品制造商会添加硝酸盐来防品，食品制造商会添加硝酸盐来防止食物腐败及肉毒杆菌生长。当硝止食物腐败及肉毒杆菌生长。当硝酸盐碰上有机酸时，会转变为一种酸盐碰上有机酸时，会转变为一种致癌物质亚硝酸胺致癌物质亚硝酸胺Areca（槟榔）（槟榔）嚼食槟榔是引起口腔癌的嚼食槟榔是引起口腔癌的一个因素。一个因素。Are there foods that cause cance
14、r?Are there foods that cause cancer?Fried food（油炸食品）（油炸食品）煎炸过焦后，产生致癌物质多环芳煎炸过焦后，产生致癌物质多环芳烃。咖啡烧焦后，苯并芘会增加烃。咖啡烧焦后，苯并芘会增加20倍。油煎饼、臭豆腐、煎炸芋角、倍。油煎饼、臭豆腐、煎炸芋角、油条等，因多数是使用重复多次的油条等，因多数是使用重复多次的油，高温下会产生致癌物。油，高温下会产生致癌物。Fusty food（霉变（霉变食品）食品）米、麦、豆、玉米、花生等食米、麦、豆、玉米、花生等食品易受潮霉变，被霉菌污染后品易受潮霉变，被霉菌污染后会产生致癌毒草素会产生致癌毒草素黄曲黄曲霉菌素。
15、霉菌素。Are there foods that cure cancer?Are there foods that cure cancer?Pumpkin（南瓜南瓜）含极丰富的维生素含极丰富的维生素A、维生、维生素素C，还含有钙质和纤维素、，还含有钙质和纤维素、色氨酸色氨酸P等，可预防肥胖、等，可预防肥胖、糖尿病、高血压和高胆固醇糖尿病、高血压和高胆固醇血症，是预防癌症的好食品。血症，是预防癌症的好食品。Sweet potato（红薯红薯）含有较多的胡萝卜素、赖氨酸、含有较多的胡萝卜素、赖氨酸、植物纤维、去氢表雄酮，能预植物纤维、去氢表雄酮，能预防肠癌和乳腺癌防肠癌和乳腺癌Are there
16、foods that cure cancer?Are there foods that cure cancer?Corn（玉米玉米）其营养价值超过面粉、大米，其营养价值超过面粉、大米，经常食用能预防动脉硬化、经常食用能预防动脉硬化、心脑血管疾病、癌症、高胆心脑血管疾病、癌症、高胆固醇血症、高血压等病。固醇血症、高血压等病。Balsam（苦瓜苦瓜）苦瓜的抗癌作用是由于它含有苦瓜的抗癌作用是由于它含有一种类奎宁蛋白，能激活免疫一种类奎宁蛋白，能激活免疫细胞的活性，苦瓜种子中含有细胞的活性，苦瓜种子中含有抑制细胞侵袭、转移的成分抑制细胞侵袭、转移的成分。Are there foods that cure cancer?Are there foods that cure cancer?Garlic（大蒜大蒜）实验证实，大蒜素、大蒜辣素实验证实，大蒜素、大蒜辣素对许多癌细胞具有强烈的抑制对许多癌细胞具有强烈的抑制作用，大蒜素还能阻断在体内作用，大蒜素还能阻断在体内合成亚硝胺。大蒜富含硒、锗，合成亚硝胺。大蒜富含硒、锗，锗能激活巨噬细胞的吞噬功能锗能激活巨噬细胞的吞噬功能Mushroom（蘑菇）（
