The diet-planning principle that provides all the essential nutrients in sufficient amounts to support health is:a.Balance.b.Variety.c.Adequacy.d.Moderation

The correct answer is c. Adequacy.

Explanation:

• Adequacy refers to the concept that a diet should provide all the essential nutrients, including vitamins, minerals, proteins, fats, carbohydrates, and water, in sufficient amounts to maintain health and support normal functioning.
• Balance implies that a diet should have proportions of different food groups to ensure a healthy intake.
• Variety stresses the importance of eating different foods to get a range of nutrients and avoid dietary deficiencies.
• Moderation focuses on not consuming excessive amounts of certain foods to prevent health issues.

In summary, while all the principles are important for a healthy diet, adequacy specifically addresses the need for sufficient nutrients to support overall health.