Daily Nutrition Guidelines.

The daily nutritional requirements for the human body vary depending on factors such as age, sex, weight, height, physical activity level, and overall health. However, I can provide you with general guidelines for the recommended daily intake of essential nutrients for an average adult.

1. Macronutrients:
  - Carbohydrates: 45-65% of total daily calorie intake. Approximately 4 calories per gram.
  - Proteins: 10-35% of total daily calorie intake. Approximately 4 calories per gram.
  - Fats: 20-35% of total daily calorie intake. Approximately 9 calories per gram.

2. Vitamins:
  - Vitamin A: 700-900 micrograms (mcg) for men, 600-700 mcg for women.
  - Vitamin B complex (B1, B2, B3, B5, B6, B7, B9, B12): Varies for each vitamin.
  - Vitamin C: 75-90 milligrams (mg) for men, 75-85 mg for women.
  - Vitamin D: 600-800 international units (IU).
  - Vitamin E: 15 mg.
  - Vitamin K: 90-120 mcg.

3. Minerals:
  - Calcium: 1000-1300 mg.
  - Iron: 8-18 mg for men, 8-27 mg for women.
  - Magnesium: 400-420 mg for men, 310-320 mg for women.
  - Potassium: 2500-3500 mg.
  - Sodium: Less than 2300 mg.

4. Other Nutrients:
  - Fiber: 25-38 grams for men, 21-25 grams for women.
  - Water: Approximately 3.7 liters (125 ounces) for men, 2.7 liters (91 ounces) for women.

Remember that these values are general recommendations, and individual needs may vary. It's always best to consult with a healthcare professional or a registered dietitian for personalized nutritional advice based on your specific circumstances.