1. Protein-energy malnutrition: This occurs when there is a deficiency in both protein and calories in the diet, leading to stunted growth, weight loss, and weakened immune system.
2. Micronutrient malnutrition: This occurs when there is a deficiency in essential vitamins and minerals, such as vitamin A, iron, and iodine, leading to various health problems like anemia, impaired cognitive development, and vision problems.
3. Undernutrition: This occurs when a person does not consume enough food to meet their body's energy needs, leading to weight loss, weakness, and increased susceptibility to infections.
4. Overnutrition: This occurs when a person consumes an excessive amount of food, particularly high-calorie, high-fat, and high-sugar foods, leading to obesity, cardiovascular diseases, and other health issues.
5. Hidden hunger: This occurs when a person's diet lacks essential micronutrients, even though they may be consuming enough calories, leading to deficiencies in vitamins and minerals.
6. Kwashiorkor: This is a severe form of malnutrition characterized by a lack of protein in the diet, leading to symptoms like swelling, skin lesions, and hair discoloration.
7. Marasmus: This is a severe form of malnutrition characterized by a lack of both protein and calories in the diet, leading to extreme weight loss, muscle wasting, and weakness.