In United States, the primary cause of undernutrition and malnutrition is dietary imbalances rather than nutritional deficiencies.
Malnutrition occurs when the body lacks the vitamins, minerals, and other nutrients necessary to maintain healthy tissues and organ function. Undernutrition is defined as not consuming enough nutrients and energy to meet one's needs for maintaining good health. Undernutrition and malnutrition are often used interchangeably in literary works. Malnutrition technically refers to both undernutrition and overnutrition. In more than half of all malnourished households in the US, there is a dual burden of malnutrition—obesity or a non-communicable disease combined with malnutrition. In the United States, chronic malnutrition affects 1% of children.
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