Define Balance Diet. Also elaborate the basis of development of food guide.

A balanced diet refers to a way of eating that provides the body with the right proportions of nutrients needed for optimal health and well-being. It involves consuming a variety of foods in appropriate quantities to meet the body's nutritional requirements while maintaining overall energy balance.

A balanced diet typically includes:

1. Fruits and Vegetables: Rich sources of vitamins, minerals, and fiber.
2. Whole Grains: Provides carbohydrates, fiber, and essential nutrients.
3. Proteins: From sources like lean meats, poultry, fish, eggs, legumes, nuts, and seeds.
4. Dairy or Dairy Alternatives: Provides calcium, vitamin D, and other essential nutrients.
5. Healthy Fats: Obtained from sources like nuts, seeds, avocados, and oils.

The development of a food guide, such as national dietary guidelines or a food pyramid, is based on scientific evidence and expert recommendations. The process involves:

1. Nutritional Research: Gathering and analyzing data on nutrient requirements, dietary patterns, and health outcomes to identify optimal dietary practices.

2. Expert Consultation: Involving dietitians, nutritionists, health professionals, and policymakers to interpret research findings and develop practical dietary recommendations.

3. Public Health Considerations: Addressing population-wide health concerns and promoting strategies to prevent chronic diseases through dietary interventions.

4. Cultural and Societal Context: Considering cultural preferences, food availability, and socioeconomic factors to develop practical and culturally sensitive dietary guidelines.

5. Education and Communication: Providing clear and accessible dietary recommendations to empower individuals and communities to make informed food choices.

Overall, a balanced diet and food guide aim to promote health, prevent disease, and support optimal nutrition for individuals and populations based on scientific evidence and expert consensus.