Elemental diet

An elemental diet is a specialized dietary regimen designed to provide nourishment in its simplest and most easily digestible form. Consisting of amino acids, sugars, fats, vitamins, and minerals, this diet is devoid of whole or partial proteins to minimize potential allergic reactions. While considered essential for specific medical conditions, it can come with challenges related to taste and tolerance.

Composition and Administration

The elemental diet provides nutrients primarily in their most basic forms:

• Amino acids: These are the building blocks of proteins. Both essential and non-essential amino acids are included.
• Carbohydrates: About 90% of the diet's energy comes from carbohydrates, mainly glucose.
• Fats: Constituting less than 1% of the diet.
• Vitamins: Both water-soluble and fat-soluble vitamins are added.
• Minerals: Essential minerals and electrolytes are incorporated.
• Depending on the patient's ability to tolerate the liquid formula, the elemental diet can be consumed orally or administered via nasogastric tubes.

Uses

The primary use of the elemental diet is for Crohn's disease patients.

• Crohn's disease: An inflammatory bowel disease (IBD), Crohn's can affect any part of the gastrointestinal tract. Common symptoms include intestinal blockages, ulcers, and sores in the affected tissue regions. The disease can also manifest in other body parts, leading to skin issues, arthritis, and inflammation in the mouth or eyes. Malnutrition often results from the inflammation-causing diarrhea and subsequent malabsorption of essential nutrients.

Given its composition, the elemental diet helps in:

• Reducing digestive work: Since nutrients are in their simplest forms, the body doesn't have to expend energy breaking them down.
• Preventing food-gut reactions: By avoiding complex foods, the diet minimizes symptoms and complications associated with Crohn’s disease.
• Altering gut flora: This can have potential therapeutic effects in patients.

Introduction and Dietary Regimen

Introducing the elemental diet typically spans over three days, where its strength is progressively increased daily. This gradual approach minimizes potential side effects such as diarrhea and abdominal colic.

While on this diet, patients are generally advised to refrain from all solid foods. Some exceptions, like tea and coffee without milk, might be permitted. Brands like Vivonex and Elental offer elemental diet solutions that yield similar therapeutic outcomes.

Disadvantages

Despite its therapeutic potential, the elemental diet is not without challenges:

• Taste: Many patients find the diet unpalatable, leading some to opt for intragastric administration.
• Nausea and Diarrhea: Due to its high sugar content, these digestive problems can arise. Additionally, hyperglycemia can be exacerbated in diabetic patients.
• Liver load: With the digestive burden moved from the gut, the liver takes on increased processing. Hence, it's crucial to monitor liver function through blood tests during the diet.

See also

• Inflammatory bowel disease
• Nutritional therapy
• Digestive system
• Malnutrition