Medical research

Scientists use machine learning to improve gut disease diagnosis

A study published in the open access journal JAMA Open Network June 14 by scientists at the University of Virginia schools of Engineering and Medicine and the Data Science Institute says machine learning algorithms applied ...

Health

Study links poor sleep with poor nutrition

Many Americans get less than the recommended amount of sleep, and many do not consume the recommended amounts of important vitamins and minerals. A new study suggests the two factors may be connected.

Medical research

New study reveals gut segments organized by function

As food enters the intestine, it embarks on windy, lengthy journey. For most of the route, its surroundings don't appear to change much. But new research from Rockefeller's Daniel Mucida shows that the food-processing canal ...

Health

The top 5 veggies to add to your diet

(HealthDay)—The guidelines to eat more vegetables are clear, and eating a rainbow of colors gets you the widest variety of nutrients and phyto-nutrients, those hard-to-duplicate compounds that go beyond vitamins and minerals.

Health

The top five fruits to add to your diet

(HealthDay)—Ounce for ounce and calorie for calorie, leafy greens and other types of vegetables are the hands-down favorites for delivering on nutrients. But many fruits should also have a place at the table.

Health

Could you be short on vitamin B12?

(HealthDay)—In the ABCs of vitamins, B12 is often overlooked. But it's essential for the making of nerve and red blood cells, as well as DNA along with many other body processes. Adults and teens need just 2.4 micrograms ...

Medical research

The fluid that feeds tumor cells

Before being tested in animals or humans, most cancer drugs are evaluated in tumor cells grown in a lab dish. However, in recent years, there has been a growing realization that the environment in which these cells are grown ...

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Nutrient

A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment. They are used to build and repair tissues, regulate body processes and are converted to and used as energy. Methods for nutrient intake vary, with animals and protists consuming foods that are digested by an internal digestive system, but most plants ingest nutrients directly from the soil through their roots or from the atmosphere.

Organic nutrients include carbohydrates, fats, proteins (or their building blocks, amino acids), and vitamins. Inorganic chemical compounds such as dietary minerals, water, and oxygen may also be considered nutrients. A nutrient is said to be "essential" if it must be obtained from an external source, either because the organism cannot synthesize it or produces insufficient quantities. Nutrients needed in very small amounts are micronutrients and those that are needed in larger quantities are called macronutrients. The effects of nutrients are dose-dependent and shortages are called deficiencies.

See healthy diet for more information on the role of nutrients in human nutrition.

This text uses material from Wikipedia, licensed under CC BY-SA