Abstract
There has been significant research and development in pharmaco-therapeutic molecules for management of type 2 diabetes mellitus (T2DM). Diabetes specific nutrition intervention & newer incretin-based therapies have gained a lot of attention. Since incretins play an essential role in augmenting the post-prandial release of insulin, it is important to understand the science behind incretins and modulation of same by diabetic-specific nutrition (DSN). The purpose of this article is to summarize the available science around glucagon like peptide 1 (GLP-1) and the known role of nutrition, particularly diabetes specific nutrition.
 Literature published in PubMed, Google scholar and Embase were studied up to the end of August 2018. The key words of GLP-1, T2DM and Nutrients were used in different combinations.
 It was found that macronutrient aspects of DSN like complex carbohydrate, soluble fibre, proteins and high monounsaturated fatty acids augment GLP-1 secretion from intestinal L-cells. This may be attributed to insulin-trophic effects of DSN as well as its effects in causing deceleration in gastric emptying and reducing food intake. Hence, it was concluded that augmenting GLP-1 secretion in response to the intake of certain nutrients helps in modulating insulin secretion, metabolic homeostasis as well as decelerating gastric emptying and reducing food intake. DSN increases endogenous GLP-1 secretion which in turn improves insulin secretion and sensitivity. Thus, integrating DSN in mainstay diabetes management plans may result in better glycaemic and metabolic controls, particularly when GLP-1 based therapies are concurrently in use.
 Key Messages:
 DSN containing complex carbohydrate, soluble fibre, proteins and high monounsaturated fatty acids (MUFAs) augments GLP-1 secretion which in turn improves insulin secretion and sensitivity.
Highlights
Diabetes requires a holistic management approach, including a focus on nutrition, exercise, life style and medications
We focus mainly on understanding the benefits of diabetes-specific nutrition (DSN) on glucagon-like peptide 1 (GLP-1) and how augmenting GLP-1 secretion benefits type 2 diabetes mellitus (T2DM) patients
The term “formula” is used in this paper, not to refer to an infant feeding product, but to a scientifically formulated nutrition supplement commonly used in the management of diabetes
Summary
Diabetes requires a holistic management approach, including a focus on nutrition, exercise, life style and medications. Research regularly updates the medication management, but research is infrequent when it comes to nutrition intervention. Every diabetic patient worries about their diet and diabetes-specific nutrition (DSN) should receive more attention from public health nutritionists. Literature regarding the scientific benefits of such nutrition is evolving. We focus mainly on understanding the benefits of DSN on GLP-1 and how augmenting GLP-1 secretion benefits type 2 diabetes mellitus (T2DM) patients. The term “formula” is used in this paper, not to refer to an infant feeding product, but to a scientifically formulated nutrition supplement commonly used in the management of diabetes. This review does not relate to any specific product
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