What is a Whole-Protein Formula?
Isosource falls into the category of a whole-protein or intact protein formula. This means the protein content is provided in its complete, un-hydrolyzed form, requiring the body's digestive system to break it down naturally. This contrasts with elemental or semi-elemental formulas, where proteins are already broken down into smaller peptides or amino acids, which are often used for individuals with impaired digestion.
For many patients, a whole-protein formula like Isosource is preferable because it is typically better tasting and more economical, while still providing all the necessary nutrients. The use of a whole-protein blend from sources such as milk protein concentrate and soy protein isolate helps support lean body mass.
The Different Variations of Isosource
Nestlé Health Science offers several products under the Isosource brand, each with different caloric densities and compositions to meet a variety of patient needs. These different formulations allow healthcare professionals to tailor nutritional plans to specific medical requirements.
Isosource 1.5 Cal
This is a calorically-dense formula, providing 1.5 calories per milliliter. It is an excellent option for patients who require more calories in a smaller volume of fluid, such as those with fluid restrictions or elevated caloric needs. Some versions, like Isosource Fibre 1.5, include a blend of soluble and insoluble fibers to help support digestive health and bowel function.
Isosource 2.0
Isosource 2.0 is an even more calorically-dense whole-protein formula, delivering 2.0 calories per milliliter. This formula is particularly useful for patients with severe fluid restrictions or very high caloric needs. It is typically fiber-free, which may be necessary for certain medical conditions.
Isosource Fibre and Other Variants
Other products in the Isosource family, such as Isosource Fibre 1.0 HP and Isosource Fibre 1.2, cater to standard nutritional requirements while incorporating fiber. The fiber blend, known as IS50™, is formulated with pea fiber and other components to promote normal bowel function. The 'HP' in Fibre 1.0 HP stands for 'High Protein', indicating an increased protein concentration relative to its caloric density.
Key Ingredients and Nutritional Profile
The nutritional completeness of Isosource formulas comes from their carefully balanced ingredient list. The core components include:
- Protein Source: A blend of milk protein concentrate (casein) and soy protein isolate provides high-quality, whole proteins.
- Carbohydrate Source: Corn syrup and maltodextrin serve as the primary carbohydrate sources, providing sustained energy.
- Fat Source: Canola oil is the main fat source and is rich in monounsaturated fats and omega-3 fatty acids. Medium-chain triglycerides (MCT) are also included in some formulas to support digestion.
- Fiber Source: Formulas with fiber typically contain a blend of soluble and insoluble fibers from sources like pea fiber, acacia gum, and fructooligosaccharides.
- Vitamins and Minerals: A complete profile of essential vitamins and minerals is included to support overall health when the formula is used as a sole source of nutrition.
Comparison of Key Isosource Products
| Feature | Isosource 1.5 Cal | Isosource Fibre 1.5 | Isosource 2.0 |
|---|---|---|---|
| Caloric Density | 1.5 kcal/mL | 1.5 kcal/mL | 2.0 kcal/mL |
| Protein Content | High protein (approx. 19%) | High protein (approx. 18%) | High protein (approx. 16%) |
| Fiber | Yes, with fiber blend | Yes, with IS50™ blend | No |
| Fluid Restriction | Suitable | Suitable | Best for severe restriction |
| Use | Oral or tube feeding | Oral or tube feeding | Tube feeding only |
How Isosource is Administered
Isosource formulas are designed for easy administration and can be used in several ways depending on the patient's needs. They are available in pre-packaged, ready-to-use formats, often referred to as Ready-To-Hang (RTH) for tube feeding. For patients who can consume fluids orally, the formula can be poured into a cup and consumed directly. In both cases, the formulas are nutritionally complete and can serve as a primary source of nutrition or as a supplement to a regular diet.
Conclusion
In summary, Isosource is a line of whole-protein enteral formulas manufactured by Nestlé Health Science. It is not an elemental formula but rather provides intact, high-quality proteins along with carbohydrates, fats, and a full spectrum of vitamins and minerals. With different variations available—some with higher caloric density and others with added fiber—Isosource is designed to manage various nutritional requirements for patients with malnutrition, fluid restriction, or other conditions. As with any specialized medical nutrition product, it is crucial to use Isosource under the supervision of a healthcare professional. For more information on the full range of products, you can visit the official Nestlé Health Science website.
