As a nutrition and health expert with a focus on biochemistry, I can provide a detailed explanation on whether fructose is a simple carbohydrate.

Carbohydrates are one of the three macronutrients essential for human nutrition, along with proteins and fats. They are the body's primary source of energy and are found in a variety of foods. Carbohydrates can be classified into three main groups: simple carbohydrates, complex carbohydrates, and dietary fiber.

Simple carbohydrates, also known as monosaccharides and disaccharides, are the most basic form of carbohydrates. They are composed of a single sugar molecule or two sugar molecules linked together. Monosaccharides include glucose, fructose, and galactose, which are the simplest form of carbohydrates and can be absorbed directly by the body without the need for further breakdown. Disaccharides are made up of two monosaccharides linked together and include sucrose (table sugar), lactose (milk sugar), and maltose (malt sugar).

Fructose, specifically, is a monosaccharide that is found naturally in fruits, honey, and some vegetables. It is also one of the components of table sugar (sucrose), where it is bound to glucose. Fructose is unique among sugars because it is sweeter than glucose and is metabolized differently in the body, primarily in the liver.

The statement provided suggests that fructose is one of the major simple carbohydrates or sugars that come from plants, along with glucose, maltose, and sucrose. This is accurate. Fructose is indeed a simple carbohydrate because it is a monosaccharide, which is the simplest form of a carbohydrate molecule.

It's important to note that while fructose is a simple carbohydrate, it should be consumed in moderation as part of a balanced diet. High intake of fructose, especially from added sugars, has been associated with various health issues, including obesity, type 2 diabetes, and non-alcoholic fatty liver disease.

In addition, the statement also mentions lactose, which is a disaccharide found in milk. It is composed of glucose and galactose and requires the enzyme lactase for digestion in humans.

Lastly, the statement points out a common misconception that grains are the only source of carbohydrates. While grains are indeed a significant source of complex carbohydrates, carbohydrates are found in a wide variety of foods, including fruits, vegetables, legumes, dairy products, and sweets.

In conclusion, fructose is a simple carbohydrate because it is a monosaccharide. It is an important part of a balanced diet but should be consumed in appropriate amounts to support overall health.

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The major simple carbohydrates or sugars are glucose, maltose, fructose, and sucrose which come from plants. Lactose is found in milk. We generally think of grains (Bread & Cereal group) as the only source of carbohydrates.Jul 9, 1997read more >>