Overnutrition

Overnutrition is a form of malnutrition in which nutrients are oversupplied relative to the amounts required for normal growth, development, and metabolism.

The term can refer to obesity brought on by general overeating of foods high in caloric content, as well as the oversupply of a specific nutrient or categories of nutrients, such as mineral or vitamin poisoning due to excessive intake of dietary supplements, or nutritional imbalances caused by various fad diets.

Reference
The Merck Manual - Malnutrition

Övernäring 营养过剩