Protein is essential for tissue growth and repair, and infants and young children have a higher requirement for protein per unit of body weight compared to adults.

The recommended daily intake of fruits and vegetables for children and adolescents is 4-5 servings, with a focus on a variety of colors and types to ensure a wide range of nutrients.

Calcium is essential for bone growth and maintenance, and adolescents have increased calcium needs due to their rapid bone growth.

Carbohydrates are the primary energy source for the body and should be consumed in moderation, as excessive intake can lead to weight gain and other health issues.

Iron is a vital nutrient for red blood cell production and oxygen transport, and its deficiency can lead to anemia.

The recommended daily intake of water for adults is approximately 2-3 liters, although individual needs may vary depending on factors like activity level and climate.

Folate is crucial for the prevention of neural tube defects in the fetus and is recommended for pregnant women to consume in sufficient amounts.

Lactating women have increased protein needs to support milk production, and the recommended daily intake is approximately 70-80 grams.

Vitamin D is crucial for calcium absorption and bone health, and its deficiency is common among the elderly, leading to an increased risk of osteoporosis.

Individuals with diabetes should follow a balanced diet that includes a variety of nutrient-rich foods from all food groups, with a focus on whole grains, fruits, vegetables, and lean protein.

Vitamin B12 is primarily found in animal products, and vegans need to consume fortified foods or supplements to ensure adequate intake.

The recommended daily intake of fiber for adults is approximately 25-30 grams, which can be obtained through a diet rich in whole grains, fruits, vegetables, and legumes.

Carbohydrates are the primary energy source for the body, and athletes have increased energy needs due to their intense physical activity.

Individuals with high blood pressure should follow a low-sodium diet, which involves limiting the intake of processed foods, salty snacks, and added salt.

Vitamin D is necessary for the absorption of calcium, and individuals with lactose intolerance may need to consume fortified foods or supplements to ensure adequate intake.