romikgosai/squad_modified huggingface dataset:
Dietary fiber is a carbohydrate that is incompletely absorbed in humans and in some animals. Like all carbohydrates, when it is metabolized it can produce four Calories (kilocalories) of energy per gram. However, in most circumstances it accounts for less than that because of its limited absorption and digestibility. Dietary fiber consists mainly of cellulose, a large carbohydrate polymer which is indigestible as humans do not have the required enzymes to disassemble it. There are two subcategories: soluble and insoluble fiber. Whole grains, fruits (especially plums, prunes, and figs), and vegetables are good sources of dietary fiber. There are many health benefits of a high-fiber diet. Dietary fiber helps reduce the chance of gastrointestinal problems such as constipation and diarrhea by increasing the weight and size of stool and softening it. Insoluble fiber, found in whole wheat flour, nuts and vegetables, especially stimulates peristalsis – the rhythmic muscular contractions of the intestines, which move digesta along the digestive tract. Soluble fiber, found in oats, peas, beans, and many fruits, dissolves in water in the intestinal tract to produce a gel that slows the movement of food through the intestines. This may help lower blood glucose levels because it can slow the absorption of sugar. Additionally, fiber, perhaps especially that from whole grains, is thought to possibly help lessen insulin spikes, and therefore reduce the risk of type 2 diabetes. The link between increased fiber consumption and a decreased risk of colorectal cancer is still uncertain.

Questions and answers:
['
Q: What example of a carbohydrate is unable to be fully absorbed in humans?
A: Dietary fiber', '
Q: How many kilocalories of energy per gram is dietary fiber able to produce when successfully metabolized?
A: four', '
Q: What is the main component that makes up dietary fiber?
A: cellulose', '
Q: What is an example of a gastrointestinal problem other than diarrhea?
A: constipation', '
Q: What does soluble fiber do to help lower blood glucose levels?
A: slow the absorption of sugar']
A molecule of dietary fat typically consists of several fatty acids (containing long chains of carbon and hydrogen atoms), bonded to a glycerol. They are typically found as triglycerides (three fatty acids attached to one glycerol backbone). Fats may be classified as saturated or unsaturated depending on the detailed structure of the fatty acids involved. Saturated fats have all of the carbon atoms in their fatty acid chains bonded to hydrogen atoms, whereas unsaturated fats have some of these carbon atoms double-bonded, so their molecules have relatively fewer hydrogen atoms than a saturated fatty acid of the same length. Unsaturated fats may be further classified as monounsaturated (one double-bond) or polyunsaturated (many double-bonds). Furthermore, depending on the location of the double-bond in the fatty acid chain, unsaturated fatty acids are classified as omega-3 or omega-6 fatty acids. Trans fats are a type of unsaturated fat with trans-isomer bonds; these are rare in nature and in foods from natural sources; they are typically created in an industrial process called (partial) hydrogenation. There are nine kilocalories in each gram of fat. Fatty acids such as conjugated linoleic acid, catalpic acid, eleostearic acid and punicic acid, in addition to providing energy, represent potent immune modulatory molecules.

Questions and answers:
['
Q: Dietary fat can be said to consist of fatty acids bonded to which molecule?
A: glycerol', '
Q: How many glycerol backbones does a triglyceride contain?
A: one', '
Q: What needs to be examined to determine whether a fat can be classified as saturated or unsaturated?
A: the detailed structure of the fatty acids involved', '
Q: Which element is present that is bonded to all of the carbons in a saturated fat?
A: hydrogen', '
Q: What kind of fat can a trans fat be categorized as?
A: unsaturated fat']
Saturated fats (typically from animal sources) have been a staple in many world cultures for millennia. Unsaturated fats (e. g., vegetable oil) are considered healthier, while trans fats are to be avoided. Saturated and some trans fats are typically solid at room temperature (such as butter or lard), while unsaturated fats are typically liquids (such as olive oil or flaxseed oil). Trans fats are very rare in nature, and have been shown to be highly detrimental to human health, but have properties useful in the food processing industry, such as rancidity resistance.[citation needed]

Questions and answers:
['
Q: Where do saturated fats in a diet typically originate from?
A: animal sources', '
Q: Which kind of fat is generally considered to be healthiest?
A: Unsaturated fats', '
Q: Which type of fat should people attempt to avoid?
A: trans fats', '
Q: What kind of state of matter do unsaturated fats typically have at room temperature?
A: liquids', '
Q: Although trans fats are harmful to human health, what property do they have that makes them useful in food processing?
A: rancidity resistance']
Most fatty acids are non-essential, meaning the body can produce them as needed, generally from other fatty acids and always by expending energy to do so. However, in humans, at least two fatty acids are essential and must be included in the diet. An appropriate balance of essential fatty acids—omega-3 and omega-6 fatty acids—seems also important for health, although definitive experimental demonstration has been elusive. Both of these "omega" long-chain polyunsaturated fatty acids are substrates for a class of eicosanoids known as prostaglandins, which have roles throughout the human body. They are hormones, in some respects. The omega-3 eicosapentaenoic acid (EPA), which can be made in the human body from the omega-3 essential fatty acid alpha-linolenic acid (ALA), or taken in through marine food sources, serves as a building block for series 3 prostaglandins (e.g., weakly inflammatory PGE3). The omega-6 dihomo-gamma-linolenic acid (DGLA) serves as a building block for series 1 prostaglandins (e.g. anti-inflammatory PGE1), whereas arachidonic acid (AA) serves as a building block for series 2 prostaglandins (e.g. pro-inflammatory PGE 2). Both DGLA and AA can be made from the omega-6 linoleic acid (LA) in the human body, or can be taken in directly through food. An appropriately balanced intake of omega-3 and omega-6 partly determines the relative production of different prostaglandins, which is one reason why a balance between omega-3 and omega-6 is believed important for cardiovascular health. In industrialized societies, people typically consume large amounts of processed vegetable oils, which have reduced amounts of the essential fatty acids along with too much of omega-6 fatty acids relative to omega-3 fatty acids.

Questions and answers:
['
Q: What does it mean when it is claimed that many fatty acids are non - essential?
A: the body can produce them as needed', '
Q: At least how many fatty acids are essential to the human health and have to be consumed rather than produced by the body?
A: two', '
Q: What does EPA stand for?
A: eicosapentaenoic acid', '
Q: Outside of consumption, what would be broken down in the body to obtain DGLA and AA?
A: omega-6 linoleic acid', '
Q: What do people consume that has low amounts of the necessary essential fatty acids?
A: processed vegetable oils']
The conversion rate of omega-6 DGLA to AA largely determines the production of the prostaglandins PGE1 and PGE2. Omega-3 EPA prevents AA from being released from membranes, thereby skewing prostaglandin balance away from pro-inflammatory PGE2 (made from AA) toward anti-inflammatory PGE1 (made from DGLA). Moreover, the conversion (desaturation) of DGLA to AA is controlled by the enzyme delta-5-desaturase, which in turn is controlled by hormones such as insulin (up-regulation) and glucagon (down-regulation). The amount and type of carbohydrates consumed, along with some types of amino acid, can influence processes involving insulin, glucagon, and other hormones; therefore, the ratio of omega-3 versus omega-6 has wide effects on general health, and specific effects on immune function and inflammation, and mitosis (i.e., cell division).

Questions and answers:
['
Q: What is able to prevent AA from being released from membranes?
A: Omega-3 EPA', '
Q: The conversion of omega-6 DGLA to AA is able to help regulate which process?
A: the production of the prostaglandins PGE1 and PGE2', '
Q: What kind of process is the conversion of DGLA to AA?
A: desaturation', '
Q: What is an example of a hormone other than insulin that is able to control the enzyme delta-5-desaturase?
A: glucagon', '
Q: What is the scientific name for cell division?
A: mitosis']
Proteins are structural materials in much of the animal body (e.g. muscles, skin, and hair). They also form the enzymes that control chemical reactions throughout the body. Each protein molecule is composed of amino acids, which are characterized by inclusion of nitrogen and sometimes sulphur (these components are responsible for the distinctive smell of burning protein, such as the keratin in hair). The body requires amino acids to produce new proteins (protein retention) and to replace damaged proteins (maintenance). As there is no protein or amino acid storage provision, amino acids must be present in the diet. Excess amino acids are discarded, typically in the urine. For all animals, some amino acids are essential (an animal cannot produce them internally) and some are non-essential (the animal can produce them from other nitrogen-containing compounds). About twenty amino acids are found in the human body, and about ten of these are essential and, therefore, must be included in the diet. A diet that contains adequate amounts of amino acids (especially those that are essential) is particularly important in some situations: during early development and maturation, pregnancy, lactation, or injury (a burn, for instance). A complete protein source contains all the essential amino acids; an incomplete protein source lacks one or more of the essential amino acids.

Questions and answers:
['
Q: What primarily makes up the enzymes in our body that regulate the chemical reactions that occur?
A: Proteins', '
Q: What is the primary component of every protein?
A: amino acids', '
Q: What is the term that refers to the body process that produces new proteins?
A: protein retention', '
Q: When the body no longer needs the amino acids that are present, through which excretion are they lost?
A: urine', '
Q: Approximately how many amino acid types does the human body generally have?
A: twenty']
It is possible with protein combinations of two incomplete protein sources (e.g., rice and beans) to make a complete protein source, and characteristic combinations are the basis of distinct cultural cooking traditions. However, complementary sources of protein do not need to be eaten at the same meal to be used together by the body. Excess amino acids from protein can be converted into glucose and used for fuel through a process called gluconeogenesis. The amino acids remaining after such conversion are discarded.

Questions and answers:
['
Q: What would be required for the human body to potentially have a chance to create a complete protein source?
A: two incomplete protein sources', '
Q: Other than rice, what would be another example of an incomplete protein source?
A: beans', '
Q: What is taken from proteins and converted to glucose by the body?
A: Excess amino acids', '
Q: What is the term for the conversion of amino acids into glucose?
A: gluconeogenesis', '
Q: What happens to amino acids that are left over after the body has converted what it can to glucose?
A: discarded']
Early recommendations for the quantity of water required for maintenance of good health suggested that 6–8 glasses of water daily is the minimum to maintain proper hydration. However the notion that a person should consume eight glasses of water per day cannot be traced to a credible scientific source. The original water intake recommendation in 1945 by the Food and Nutrition Board of the National Research Council read: "An ordinary standard for diverse persons is 1 milliliter for each calorie of food. Most of this quantity is contained in prepared foods." More recent comparisons of well-known recommendations on fluid intake have revealed large discrepancies in the volumes of water we need to consume for good health. Therefore, to help standardize guidelines, recommendations for water consumption are included in two recent European Food Safety Authority (EFSA) documents (2010): (i) Food-based dietary guidelines and (ii) Dietary reference values for water or adequate daily intakes (ADI). These specifications were provided by calculating adequate intakes from measured intakes in populations of individuals with “desirable osmolarity values of urine and desirable water volumes per energy unit consumed.” For healthful hydration, the current EFSA guidelines recommend total water intakes of 2.0 L/day for adult females and 2.5 L/day for adult males. These reference values include water from drinking water, other beverages, and from food. About 80% of our daily water requirement comes from the beverages we drink, with the remaining 20% coming from food. Water content varies depending on the type of food consumed, with fruit and vegetables containing more than cereals, for example. These values are estimated using country-specific food balance sheets published by the Food and Agriculture Organisation of the United Nations. Other guidelines for nutrition also have implications for the beverages we consume for healthy hydration- for example, the World Health Organization (WHO) recommend that added sugars should represent no more than 10% of total energy intake.

Questions and answers:
['
Q: What was the early recommended amount of water that was supposedly required to keep the body hydrated?
A: 6–8 glasses of water daily', '
Q: Who originally made a water intake recommendation in 1945?
A: Food and Nutrition Board of the National Research Council', '
Q: How much water should be taken in for each calorie of food that is consumed?
A: 1 milliliter', '
Q: What does ADI stand for?
A: adequate daily intakes', '
Q: Where do humans get the 20% of water that does not come from the beverages we drink?
A: food']
The EFSA panel also determined intakes for different populations. Recommended intake volumes in the elderly are the same as for adults as despite lower energy consumption, the water requirement of this group is increased due to a reduction in renal concentrating capacity. Pregnant and breastfeeding women require additional fluids to stay hydrated. The EFSA panel proposes that pregnant women should consume the same volume of water as non-pregnant women, plus an increase in proportion to the higher energy requirement, equal to 300 mL/day. To compensate for additional fluid output, breastfeeding women require an additional 700 mL/day above the recommended intake values for non-lactating women.

Questions and answers:
['
Q: Who was similar recommended intake volumes as adults?
A: the elderly', '
Q: Other then breastfeeding women, who what other category of woman should have increased water intake?
A: Pregnant', '
Q: How much more water should pregnant women consumed compared to an average non - pregnant woman?
A: 300 mL/day', '
Q: Why should lactating women increase their water consumption?
A: To compensate for additional fluid output', '
Q: How much more water do lactating women need to consume in relation to the average woman?
A: 700 mL/day']
Dietary minerals are inorganic chemical elements required by living organisms, other than the four elements carbon, hydrogen, nitrogen, and oxygen that are present in nearly all organic molecules. The term "mineral" is archaic, since the intent is to describe simply the less common elements in the diet. Some are heavier than the four just mentioned, including several metals, which often occur as ions in the body. Some dietitians recommend that these be supplied from foods in which they occur naturally, or at least as complex compounds, or sometimes even from natural inorganic sources (such as calcium carbonate from ground oyster shells). Some minerals are absorbed much more readily in the ionic forms found in such sources. On the other hand, minerals are often artificially added to the diet as supplements; the most famous is likely iodine in iodized salt which prevents goiter.

Questions and answers:
['
Q: What kind of element are dietary minerals?
A: inorganic chemical elements', '
Q: What was the term "mineral" originally meant to describe?
A: the less common elements in the diet', '
Q: In what form are some metals commonly found in the body?
A: ions', '
Q: In what form should minerals be to be absorbed easier?
A: ionic forms', '
Q: What is the most famous mineral that is artificially added that prevents goiter?
A: iodine']
As with the minerals discussed above, some vitamins are recognized as organic essential nutrients, necessary in the diet for good health. (Vitamin D is the exception: it can be synthesized in the skin, in the presence of UVB radiation.) Certain vitamin-like compounds that are recommended in the diet, such as carnitine, are thought useful for survival and health, but these are not "essential" dietary nutrients because the human body has some capacity to produce them from other compounds. Moreover, thousands of different phytochemicals have recently been discovered in food (particularly in fresh vegetables), which may have desirable properties including antioxidant activity (see below); however, experimental demonstration has been suggestive but inconclusive. Other essential nutrients that are not classified as vitamins include essential amino acids (see above), choline, essential fatty acids (see above), and the minerals discussed in the preceding section.

Questions and answers:
['
Q: Which vitamin can be synthesized in the skin?
A: Vitamin D', '
Q: What is required for vitamin D to be synthesized?
A: UVB radiation', '
Q: What is an example of a vitamin - like compound that is not considered an essential dietary nutrient?
A: carnitine', '
Q: What has recently been discovered in the thousands, especially from examining fresh vegetables?
A: phytochemicals', '
Q: What is choline not an example of?
A: vitamins']
As cellular metabolism/energy production requires oxygen, potentially damaging (e.g., mutation causing) compounds known as free radicals can form. Most of these are oxidizers (i.e., acceptors of electrons) and some react very strongly. For the continued normal cellular maintenance, growth, and division, these free radicals must be sufficiently neutralized by antioxidant compounds. Recently, some researchers suggested an interesting theory of evolution of dietary antioxidants. Some are produced by the human body with adequate precursors (glutathione, Vitamin C), and those the body cannot produce may only be obtained in the diet via direct sources (Vitamin C in humans, Vitamin A, Vitamin K) or produced by the body from other compounds (Beta-carotene converted to Vitamin A by the body, Vitamin D synthesized from cholesterol by sunlight). Phytochemicals (Section Below) and their subgroup, polyphenols, make up the majority of antioxidants; about 4,000 are known. Different antioxidants are now known to function in a cooperative network. For example, Vitamin C can reactivate free radical-containing glutathione or Vitamin E by accepting the free radical itself. Some antioxidants are more effective than others at neutralizing different free radicals. Some cannot neutralize certain free radicals. Some cannot be present in certain areas of free radical development (Vitamin A is fat-soluble and protects fat areas, Vitamin C is water-soluble and protects those areas). When interacting with a free radical, some antioxidants produce a different free radical compound that is less dangerous or more dangerous than the previous compound. Having a variety of antioxidants allows any byproducts to be safely dealt with by more efficient antioxidants in neutralizing a free radical's butterfly effect.

Questions and answers:
['
Q: What is another term that can be used to describe "potentially damaging" compounds?
A: mutation causing', '
Q: What are oxidizers?
A: acceptors of electrons', '
Q: In order for the body to function normally, what must be used to neutralize free radicals?
A: antioxidant compounds', "
Q: What subgroup of phytochemicals helps make up the majority of the body's antioxidants?
A: polyphenols", '
Q: Which area of the body does vitamin A protect?
A: fat areas']
Animal intestines contain a large population of gut flora. In humans, the four dominant phyla are Firmicutes, Bacteroidetes, Actinobacteria, and Proteobacteria. They are essential to digestion and are also affected by food that is consumed. Bacteria in the gut perform many important functions for humans, including breaking down and aiding in the absorption of otherwise indigestible food; stimulating cell growth; repressing the growth of harmful bacteria, training the immune system to respond only to pathogens; producing vitamin B12; and defending against some infectious diseases.

Questions and answers:
['
Q: What term collectively describes "Firmicutes" and "Bacteroidetes" among others?
A: phyla', '
Q: What is the importance of having phyla in the body?
A: essential to digestion', '
Q: Which vitamin are the bacteria present in the gut responsible for producing?
A: vitamin B12', '
Q: What role specifically in digestion do bacteria in the gut have?
A: breaking down and aiding in the absorption of otherwise indigestible food', '
Q: Where could one find a large population of gut flora?
A: Animal intestines']
Heart disease, cancer, obesity, and diabetes are commonly called "Western" diseases because these maladies were once rarely seen in developing countries. An international study in China found some regions had virtually no cancer or heart disease, while in other areas they reflected "up to a 100-fold increase" coincident with shifts from diets that were found to be entirely plant-based to heavily animal-based, respectively. In contrast, diseases of affluence like cancer and heart disease are common throughout the developed world, including the United States. Adjusted for age and exercise, large regional clusters of people in China rarely suffered from these "Western" diseases possibly because their diets are rich in vegetables, fruits, and whole grains, and have little dairy and meat products. Some studies show these to be, in high quantities, possible causes of some cancers. There are arguments for and against this controversial issue.

Questions and answers:
['
Q: Heart disease and obesity are examples of what kind of disease?
A: "Western" diseases', '
Q: In which country was a study about the presence of cancer and heart disease in different regions done?
A: China', '
Q: How much of an increase in presence of "Western" diseases was there in communities that primarily had animal - based diets as opposed to vegetable diets?
A: 100-fold', "
Q: Other than meat, what else is lacking from the people in China's diet compared to diets from the Western world?
A: dairy", '
Q: What disease was said to possibly be the result of diets that are high in meat and dairy products?
A: cancers']