By Marc Dellière, Medical Consultant & Trainer – Specialist in Stress, Prevention & Integrative Health
Glucose is becoming visible
For decades, glucose monitoring was primarily associated with diabetes management. Today, continuous glucose monitoring (CGM) is attracting growing interest beyond diabetes care, including among health-conscious consumers and athletes.This reflects a broader shift in nutrition: consumers no longer only want to know what they eat. They increasingly want to understand how their body responds.
👉 But a glucose curve tells only part of the story.
What athletes can teach us
Athletes provide a striking example of the complexity behind glucose dynamics. During exercise, glucose responses can vary according to intensity, duration, carbohydrate availability, food timing and hormonal responses. A rise in glucose is therefore not automatically a negative signal, just as a lower value cannot be interpreted without considering the physiological context. The same glucose curve may have different meanings depending on whether the body is resting, training, competing or recovering.
👉 Glucose is not simply a number. It is a dynamic signal. And even continuous monitoring cannot reveal everything happening behind that signal.
What the curve doesn’t show
CGM tracks glucose in the interstitial fluid. It does not directly reveal the digestive and hormonal processes shaping the postprandial response. Before glucose appears on the curve, carbohydrates must be digested. At the same time, nutrient intake triggers gut-derived signals involved in postprandial metabolic regulation. Among these, GLP-1 has emerged as a major focus of metabolic research.
👉 This broadens the perspective: postprandial management is not only about observing glucose fluctuations. It is also about understanding the physiological mechanisms that shape them.
From monitoring to action
More metabolic data do not automatically lead to better nutritional decisions. The next step may therefore be to move: from glucose monitoring to glucose understanding — and from glucose understanding to targeted nutritional action.
Pep2Dia®: acting behind the curve
Pep2Dia® is a patented milk protein hydrolysate containing the bioactive dipeptide AP (alanine-proline). Its approach is particularly relevant to this emerging metabolic landscape. Clinical research in prediabetic subjects has investigated its effects on postprandial glucose responses, while mechanistic and preclinical research supports complementary pathways involving:
- Carbohydrate digestion
Bioactive peptides in Pep2Dia® have been investigated for their alpha-glucosidase inhibitory activity, targeting a key step in carbohydrate digestion.
- Endogenous GLP-1 secretion
Preclinical evidence also suggests an effect on plasma GLP-1 secretion, opening a complementary research perspective on postprandial metabolic regulation.
By targeting physiological mechanisms that are not directly captured by the glucose curve, Pep2Dia® offers a distinctive nutritional approach to postprandial metabolic management.
👉 The future of metabolic nutrition may not be about seeing more. It may be about understanding — and acting on — what happens behind the curve.
Learn more about Pep2Dia® for glucose management!
Sources:
Holzer R. et al. Continuous Glucose Monitoring in Healthy Adults—Possible Applications in Health Care, Wellness, and Sports. Sensors. 2022.
Flockhart M., Larsen F.J. Continuous Glucose Monitoring in Endurance Athletes: Interpretation and Relevance of Measurements for Improving Performance and Health. Sports Medicine. 2024.
Helleputte S. et al. Application potential of continuous glucose monitoring (CGM) in elite endurance athletes without diabetes: What do physiology and current evidence tell us? Performance Nutrition. 2025.
Sartorius T. et al. Postprandial Effects of a Proprietary Milk Protein Hydrolysate Containing Bioactive Peptides in Prediabetic Subjects. Nutrients. 2019.
Boulier A. et al. Dose-Effect of a 6-week treatment with PEP2DIA® on Sucrose Tolerance in Goto-Kakizaki Rats. 2021.