現在位置 : 健康 > 怎樣測試自己是酸性體質或鹼性體質？
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怎樣測試自己是酸性體質或鹼性體質？
酸性體質 世界著名醫學博士,日本專家筱原秀隆先生的一份報告震驚世界,報告指出:人體的酸性化是百病之源,當酸素在體內愈來愈多,不斷堆積,量變引起質變,疾病就會產生. 酸性體質是如何產生的 但是,需要指出的是,母體內的羊水和嬰兒的體液大都是鹼性的,為什麽時間一長導致成酸性體質呢 造成人體酸化的原因主要有五種: (1).飲食結構不合理, (2).運動不足, (3).過重的心理負擔, (4).不良嗜好, (5).生活不規律 如何判斷你是不是酸性體質？ 身體酸鹼性測試 第一種辦法是自我感覺，如果長期體力不支、容易疲勞、形容憔悴或有其他亞健康特征，無疑說明你的體液在酸化。 第二種辦法是用PH試紙檢測。最簡單的是連續三天清晨空腹檢測唾液，如PH平均值小於7.0即為酸性體質。 需要說明的是，血液的PH值波動範圍極小，為7.35－7.45。小於7.35即為酸性，小於7.0，表明病情極為嚴重。 如何預防酸性體質，把身體"鹼"回來 運動 多吃鹼性食物 日常生活中要盡量多吃鹼性食物. 鹼性食物比如海帶,白蘿蔔,豆腐,紅豆,大豆,蘋果,洋蔥,芥蘭,番茄,菠菜,香蕉等都是不易引起食欲但卻對身體有益的東西.人們通常都會認為吃酸的東西就是酸性食物,諸如一看就會流口水的葡萄,草莓,檸檬等,其實這些東西正是典型的鹼性食物. 因為水果含有的有機酸在體內會氧化為二氧化碳和水,不會生成酸性代謝產物,而且蔬菜,水果中的鉀離子等鹼性物質,能中和酸性物質,維護身體達到平衡. 常見食物的酸鹼性表 多喝水 如果你主要的飲水是白開水,那麽這個小竅門興許對你有用:我們總是習慣把水燒開的時候先不關火,讓水再燒一會.這是對的,但要註意在水燒開後要把壺蓋打開燒3分鐘左右,讓水中的酸性及有害物質隨蒸氣蒸發掉,而且燒開的水最好當天喝不要隔夜. 早睡 晚上 1:00以後不睡覺,人體的代謝作用由內分泌燃燒,用內分泌燃燒產生的毒素會很多,會使體質變酸,通常熬夜的人得慢性疾病的機率比抽煙或喝酒的人都來得高.所以每天盡量在12:00以前睡覺,不要常熬夜,若非要熬夜,一星期以一次為限! 一天三餐中,早餐占了70分,午餐0分,晚餐30分.可見早餐最重要,但許多學生普遍不吃早餐, 一早空著肚子,體內沒有動力,會自動使用甲狀腺,副甲狀腺,下腦垂體等腺體,去燃燒組織,造成腺體亢進,體質變酸,長期將導致慢性病. 凡是晚上8:00再進食就稱做宵夜.吃宵夜隔天會疲倦,爬不起床,睡覺時,處於休息狀態,因此食物留在腸子里會變酸,發酵,產生毒素傷害身體. 少運動,整天坐著,又刻意選擇一些精致的食物來食用.然而,缺乏纖維素,會導 致腸子功能變差,這樣,我們所吃的食物變成了毒素,使體質變酸,慢性病也開始了. 總結 酸性體質已成為全球化的共同問題. 首先,要糾正不良生活方式使機體處於良好的狀態. 其次,要進行科學的鍛煉,運動適量,貴在堅特,促進酸性物質的排除. 再次,還要有一個合理的膳食.保證人體均衡營養. 最後,情緒對體液酸化的影響也很大,所以保持良好的心情也是預防人體酸性化的有效措施. “酸性體質”是百病之源 健康人的血液呈弱鹼性，一般新生兒的體內環境都是弱鹼性的。但據一項都市人群健康調查發現，在生活水平較高的大城市里，80%以上的人身體呈現不健康的酸性體質。 人體細胞在酸性環境中壽命降低，功能減弱。這樣，人體的新陳代謝就會減慢，廢物就不易排出，腎臟、肝臟的負擔就會加大。因此“酸性體質”者常會感到身體疲乏、記憶力減退、腰酸腿痛、四肢無力、頭昏、耳鳴、失眠、腹瀉、便秘等。如果不加以重視、註意改善，酸性體質繼續發展就會形成疾病。例如，強酸或酸性鹽堆積在關節或器官內引起相應的炎癥，導致動脈硬化、腎結石、關節炎、痛風等疾病；強酸與鈣、鎂等堿性礦物質結合成鹽類，從而導致骨質疏松癥等疾病；胃腸道酸性過多引起便秘、慢性腹瀉、尿酸、四肢酸痛，胃酸過多導致燒心、反酸、胃潰瘍等；酸性廢棄物堆積，使附近的毛細血管被堵，血液循環不暢，導致腎炎及各種癌癥。另外，酸性體質還會影響孩子的智力。酸性體質的人也容易發胖。這就是為什麽生活好了，患骨質疏松和細胞增生疾病的人反倒增加了。據統計，85%的痛風、高血壓、癌癥、高脂血癥患者，都是酸性體質。 為什麽我們的體內環境會由鹼變酸呢？首先，是飲食結構的不合理。一些專家認為，科學的飲食習慣是酸鹼食物比例為1：3，但現代人飲食中的主食往往是精米白面、雞鴨肉蛋，而這些都是酸性食物，含磷、硫、氯等元素較多；在人體的新陳代謝過程中會變成陰離子酸根，使人體慢慢變酸。經分析，現在的飲食習慣其酸堿比例卻正好相反，為3：1。因此，長期攝入過量的酸性食物是導致人體酸性化的原因之一；其次是運動量不足。有調查表明，在陽光下多做運動、多出汗，可幫助排除人體內多余的酸性物質。然而現在人們的運動量大大減少，長此以往，便會導致酸性代謝物長期滯留在體內，導致體質的酸性化；另外，不良嗜好，如煙、酒等都是典型的酸性食品，如果煙、酒成癮，極易導致人體的酸性化。也有人認為，過重的心理負擔也是原因之一。當壓力得不到釋放的時候，便會影響身體，從而導致體質的酸性化。 如果你想年輕、漂亮、健康，就要改善自己的體內環境，防止出現“酸性體質”。平時，我們可以少吃一些酸性食物，並攝影入一些堿性食物，來中和酸性體質，如水果、蔬菜、豆類、海帶、咖啡或含鈣、鎂、鉀、鈉的食物。多參加體力活動，增強組織器官的新陳代謝功能，把代謝產物及時地排出體外。戒除煙酒不良習慣。 |
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鹼性食物 (Alkaline Diet)
鹼性食物泛指所有可以平衡因廣泛進食肉類、奶茶、咖啡而引起酸性體質問題的食物。這些食物被認為當消化後，會在身體內留下鹼性的「灰燼」。食物的酸鹼性，由這些食物的「灰燼」的水溶液的pH值決定，一般都含有鈣、鐵、鎂、鋅及銅等元素。以下為部份食物的大致分類： 強鹼性食品：葡萄、茶葉、葡萄酒、海帶、柑橘類、柿子、黃瓜、胡蘿卜、小麥草。 中鹼性食品：大豆、蕃茄、 香蕉、草莓、蛋白、梅乾、檸檬、菠菜 弱鹼性食品：紅豆、蘋果、甘藍菜、豆腐、捲心菜、油菜、梨、馬鈴薯 目前醫學界對「酸性體質」的存在與否尚有爭議，但在營養補充業界及另類療法業者則廣泛推廣，聲稱可預防癌症、慢性疲勞、肥胖症、敏感、骨質疏鬆等一系列體格及健康問題，但未有足夠的醫學驗證去支持。 鹼性飲食起源於1920年代由美國醫生William Howard Hay推廣的「Hay diet」，以及於1970年代由Gary A. Martin推廣的醫學營養療法。目前在香港的將軍澳醫院有進行醫學營養療法研究，並用於設計病人的餐單，但未有採納鹼性飲食的學說。 |
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Alkaline Diet (鹼性飲食)
Alkaline diet (also known as the alkaline ash diet, alkaline acid diet, acid ash diet, and the acid alkaline diet) describes a group of loosely related diets based on the belief that certain foods can affect the acidity and pH of bodily fluids, including the urine or blood, and can therefore be used to treat or prevent diseases. Due to the lack of human studies supporting any benefits of this diet, it is generally not recommended by dieticians and other health professionals. The relationship between diet and acid-base homeostasis, or the regulation of the acid-base status of the body, has been studied for decades, though the medical applications of this theory have largely focused on changing the acidity of urine. Traditionally, this diet has advocated for avoiding meat, poultry, cheese, and grains in order to make the urine more alkaline (higher pH), changing the environment of the urine to prevent recurrent urinary tract infections (UTIs) and kidney stones (nephrolithiasis). However, difficulties in effectively predicting the effects of this diet have led to medications, rather than diet modification, as the preferred method of changing urine pH. The "acid-ash" hypothesis has been considered a risk factor for osteoporosis by various scientific publications, though more recently, the available weight of scientific evidence does not support this hypothesis. The term "alkaline diet" has also been used by alternative medicine practitioners, with the proposal that such diets treat or prevent cancer, heart disease, low energy levels as well as other illnesses. These claims are not supported by medical evidence and make incorrect assumptions about how alkaline diets function that are contrary to modern understanding of human physiology. |
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Medical Aspects
Diet Composition According to the traditional theory underlying this diet, acid ash is produced by meat, poultry, cheese, fish, eggs, and grains. Alkaline ash is produced by fruits and vegetables, except cranberries, prunes and plums. Since the acid or alkaline ash designation is based on the residue left on combustion rather than the acidity of the food, foods such as citrus fruits that are generally considered acidic are actually considered alkaline producing in this diet. Current Hypotheses It has been suggested that diets high in "acid ash" (acid producing) elements will cause the body to try to buffer (or counteract) any additional acid load in the body by breaking down bone, leading to weaker bones and increased risk for osteoporosis. Conversely, "alkaline ash" (alkaline producing) elements will theoretically decrease the risk of osteoporosis. This theory has been advanced in a position statement of the American Dietetic Association, in a publication of the U.S. National Academy of Sciences, as well as other scientific publications, which have stated foods high in potassium and magnesium such as fruits and vegetables may decrease the risk of osteoporosis through increased alkaline ash production. This acceptance of the acid-ash hypothesis as a major modifiable risk factor of osteoporosis by these publications, however, was largely made without significant critical review by high quality systematic analysis. Recent systematic reviews have been published which have methodically analyzed the weight of available scientific evidence, and have found no significant evidence to support the acid-ash hypothesis in regards to prevention of osteoporosis. A meta-analysis of studies on the effect of dietary phosphate intake contradicted the expected results under the acid-ash hypothesis with respect to calcium in the urine and bone metabolism. This result suggests use of this diet to prevent calcium loss from bone is not justified. Other meta-analyses which have investigated the effect of total dietary acid intake have also found no evidence that acid intake increases the risk for osteoporosis as would be expected under the acid-ash hypothesis. A review looked at the effects of dairy product intake, which have been hypothesized to increase the acid load of the body through phosphate and protein components. This review found no significant evidence suggesting dairy product intake causes acidosis or increases risk for osteoporosis. It has also been speculated that this diet may have an effect on muscle wasting, growth hormone metabolism or back pain, though there is no conclusive evidence to confirm these hypotheses. Alternative Medicine Alternative medicine practitioners who have promoted the alkaline diet have advocated its use in the treatment of various medical conditions including cancer. These claims have been mainly promoted on websites, magazines, direct mail, and books, and have been mainly directed at a lay audience. While it has been proposed that this diet can help increase energy, lose weight, and treat cancer and heart disease, there is no evidence to support any of these claims. This version of the diet, in addition to avoiding meats and other proteins, also advocates avoiding processed foods, white sugar, white flour, and caffeine, and can involve specific exercise and nutritional supplement regimens as well. Evidence Base Advocates for alternative uses of an alkaline diet propose that since the normal pH of the blood is slightly alkaline, the goal of diet should be to mirror this by eating a diet that is alkaline producing as well. These advocates propose that diets high in acid-producing elements will generally lead the body to become acidic, which can foster disease. This proposed mechanism, in which the diet can significantly change the acidity of the blood, goes against "everything we know about the chemistry of the human body" and has been called a "myth" in a statement by the American Institute for Cancer Research. Unlike the pH level in the urine, a selectively alkaline diet has not been shown to elicit a sustained change in blood pH levels, nor to provide the clinical benefits claimed by its proponents. Because of the body's natural regulatory mechanisms, which do not require a special diet to work, eating an alkaline diet can, at most, change the blood pH minimally and transiently. A similar proposal by those advocating this diet suggests that cancer grows in an acidic environment, and that a proper alkaline diet can change the environment of the body to treat cancer. This proposal ignores the fact that while cancer tissue does grow in acidic environment, it is the cancer that creates the acidity. The rapid growth of cancer cells creates the acidic environment; the acidic environment does not create cancer. The proposal also neglects to recognize that it is "virtually impossible" to create a less acidic environment in the body. "Extreme" dietary plans such as this diet have more risks than benefits for patients with cancer. Other proposed benefits from eating an alkaline diet are likewise not supported by scientific evidence. Although it has been proposed that this diet will increase "energy" or treat cardiovascular disease, there is no evidence to support these assertions. A version of this diet has also been promoted by Robert O. Young as a method of weight loss in his book The pH Miracle. According to the Academy of Nutrition and Dietetics, portions of his diet such as the emphasis on eating green leafy vegetables and exercise would likely be healthy. However, the "obscure theory" on which his diet is based and the reliance on complicated fasting regimens and nutritional supplements means that this diet "is not a healthy way to lose weight." It has also been proposed that acid causes rheumatoid arthritis and osteoarthritis, and that an alkaline diet can be used to treat these conditions. There is no evidence to support this proposal. Urinary and/or saliva testing for acidity has been proposed as a way to measure the body's acidity level and therefore the level of risk for diseases. However, there is no correlation between the urinary pH measured in home "test kits" and the acidity of the body. Adverse Effects Because the alkaline diet promotes excluding certain families of foods, it could result in a less-balanced diet with resulting nutrient deficiencies such as essential fatty acids and phytonutrients. Many websites and books promoting this diet sell courses of supplements and foods; it should not be necessary to purchase any of these products. The level of effort needed to use this diet is considered "High" as there are many foods that need to be excluded in this diet. History The role of the diet and its influence on the acidity of urine has been studied for decades, as physiologists have studied the kidney's role in the body's regulatory mechanisms for controlling the acidity of body fluids. The French biologist Claude Bernard provided the classical observation of this effect when he found that changing the diet of rabbits from an herbivore (mainly plant) diet to a carnivore (mainly meat) diet changed the urine from more alkaline to more acid. Spurred by these observations, subsequent investigations focused on the chemical properties and acidity of constituents of the remains of foods combusted in a bomb calorimeter, described as ash. The "dietary ash hypothesis" proposed that these foods, when metabolized, would leave a similar "acid ash" or "alkaline ash" in the body as those oxidized in combustion. Nutrition scientists began to refine this hypothesis in the early 20th century, emphasizing the role of negatively charged particles (anions) and positively charged particles (cations) in food. Diets high in chloride, phosphates and sulfates (all of which are anions) were presumed to be acid forming, while diets high in potassium, calcium and magnesium (all of which are cations) were presumed to be alkaline forming. Other investigations showed specific foods, such as cranberries, prunes and plums had unusual effects on urine pH. While these foods provided an alkaline ash in the laboratory, they contained a weak organic acid, hippuric acid, which caused the urine to become more acidic instead. Historical Uses Historically, the medical application of this diet has largely focused on preventing recurrence of kidney stones as well as the prevention of recurrent UTIs, by relying on the recognized ability of this diet to affect urinary pH. Years ago, this diet was used to adjust the acidity of the urinary environment that the stones formed in, and could theoretically help prevent stones from forming or the development of UTIs. However, the analytical methods that attempted to precisely calculate the effects of food on urinary pH were not precise except in very general terms, making effective use of this diet difficult. Therefore, medications, which can more reliably alter the urine pH, rather than diet modification, have been the treatment of choice when trying to alter the pH of the urine. While there have been recent improvements in recognizing different variables that can affect acid excretion in the urine, the level of detail needed to predict the urinary pH based on diet is still daunting. Precise calculations require very detailed knowledge of the nutritional components of every meal as well as the rate of absorption of nutrients, which can vary substantially from individual to individual, making effective estimation of urine pH still not currently feasible. |
