Nutritional Completeness of Diets

Principles of a Nutritionally Complete Diet

A nutritionally complete diet must include foods from all food groups to ensure that all nutrient needs are met, as no single food contains all essential nutrients, according to the American Heart Association 1
A nutritionally complete diet should provide a variety of fruits and vegetables (5 or more servings daily), whole grain products (6 or more servings daily), low-fat dairy products, legumes, nuts, fish, poultry, and lean meats, as recommended by the American Heart Association 1
A nutritionally complete diet should contain adequate amounts of macronutrients: proteins (~15% of calories), carbohydrates (~55% of calories), and fats (~30% of calories), as suggested by the American Heart Association 2
A nutritionally complete diet should include a minimum of 100 g of carbohydrates per day to ensure general nutritional adequacy, according to the American Heart Association 2

For patients with intestinal stenosis or active inflammatory bowel disease, cooking, steaming, chopping, or pureeing foods to achieve a soft texture is recommended, while maintaining nutritional variety, as advised by the American Gastroenterological Association 4
Modified texture foods can include liquid puree, thick/smooth puree, finely chopped, and normally modified, as described by the European Society for Clinical Nutrition and Metabolism 5
The key is to maintain nutrient density while adjusting texture, not eliminating entire food groups, as emphasized by the European Society for Clinical Nutrition and Metabolism 5

Vitamin and mineral supplements are not substitutes for a balanced and nutritious diet that emphasizes fruits, vegetables, and whole grains, as stated by the American Heart Association 1
Extremely restrictive diets increase the risk of inadequate intake of energy, fats, proteins, and micronutrient deficiencies, as warned by the European Society for Clinical Nutrition and Metabolism 6
If a texture-modified diet is required for medical reasons, it should be designed with the advice of a registered dietitian to ensure that it includes all food groups in appropriately processed forms, maintains adequate nutrient density, and provides supplementation when necessary, as recommended by the European Society for Clinical Nutrition and Metabolism 5 and the American Heart Association 1