Answer: c) carbohydrates
Which nutrient serves as a major source of energy?a)proteinsb)fatsc)carbohydratesd)vitamins

Thu Aug 17 2006 14:30:00 GMT-0400 (Eastern Daylight Time) · Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue and can also serve as a fuel source. As a fuel proteins provide as much energy density as carbohydrates: 4 kcal per gram; in contrast lipids provide 9 kcal per gram. The most important aspect and defining characteristic of protein from a nutritional standpoint is its amino acid composition. Proteins …

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The chemical elements humans consume in the largest quantities are carbon hydrogen nitrogen oxygen phosphorus and sulphur summarized as CHNOPS. The chemical compounds that humans consume in the largest quantities and provide bu...

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