Answer the following question: Cooking food is something we have done since the first caveman threw a mammoth steak on the fire. While it is true that cooking does cause chemical changes in food and a loss of some nutrients, it is a clear case of being alert and not alarmed. Every time we cook food, there is some degree of nutrient loss. Exposing food to heat, oxygen or light alters the nutrients found in food. It is not all bad news though because cooking food also has its advantages. Cooking food can increase its digestibility, meaning you will get more nutrients out of it. And even though there may be less of some nutrients from cooking, it is swings and roundabouts as the availability of certain phytonutrients increases. And of course, let's not forget that heating food kills some of the nasty microbes that can cause food poisoning. The principle behind a raw food diet is that cooking food destroys the natural enzymes and nutrients that would otherwise give us optimal health and control body weight. A raw food diet is almost entirely plant-based and includes fruits, vegetables, nuts, seeds, grains, vegetable oils and juices in their natural uncooked state. Now on the pro side for a raw food diet, it means if you are currently eating a lot of processed food, then switching to raw food will be a clear nutritional win. So that gets a big tick. Unquestionably, there are many benefits to eating plenty of fruits and vegetables. These foods are high in nutrients and fibre and low in kilojoules. But is raw superior to cooked? A review of 28 research studies found eaters of both cooked and raw vegetables had a lower risk of cancer compared to people who did not eat many vegetables in the first place. Where the science gets murky is the claim that raw food is better because cooking destroys the enzymes found in plants. It is 100 percent correct that cooking will do this. But so too does digestion. Few enzymes survive their trip through the hydrochloric acid spa bath in the stomach. And those plant enzymes are essential only to the plants. The... Why doesn't raw food give the body access to more enzymes? - not enough information - Because the enzymes are destroyed during digestion. - Because of the presence of nasty microbes. - Because a raw food diet is mainly plant-based.
Answer:
Because the enzymes are destroyed during digestion.