Could a slow-digesting starch diet help tame type 2 diabetes?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patient able to understand the study information and providing written consent for his/her participation to the study * Male or female * Patient undergoing medical examination during the selection visit * Patient aged between 18 and 75 years old (bounds included) * T2D volunteer with HbA1c between 7% and 8,5% without signs of insulinopenia according to the investigator * Patient with BMI ranging between 25 and 40 kg/m2 (bounds included) * Patient with stable body weight over the past three months (+/- 5 % of body weight) * Patient accepting to change its diet for three months * Patient not suffering from food intolerance or allergy * Patient regularly consuming products proposed in the study * Patient agreeing to consume 3 main meals per day without extra-prandial carbohydrates intakes * Sedentary behavior or stable predicted physical activity during the study * Patient not presenting any disease during the medical examination / interview which could interfere with the results of the study according to the investigator * Patient covered by health insurance * Patient accepting to have short nails on his/her 2 forefingers Exclusion Criteria: * Patient under legal protection measure * Patient deprived of liberty by a court or an administrative decision * Patient currently participating in another study or being in the exclusion period of another study * Volunteer that exceed the financial compensation allowed per year for participating in research programs * Gamma-GT \> 2.5 times above the norm (\>160 UI/L) * ASAT \> 2.5 times above the norm (\>85 UI/L) * ALAT \> 2.5 times above the norm (\>137.5 UI/L) * Triglycerides \> 4 g/L * LDL-cholesterol \> 1.90 g/L * CRP \> 15 mg/L * Hemoglobin \< 120 mg/dL * eGRF (estimated glomerular filtration rate) \< 45 ml/min * Other biological abnormality with clinical significant relevance according to the investigator * Patient with type 1 diabetes, post pancreatectomy or post transplant diabetes, MODY diabetes, mitochondrial diabetes, iatrogenic diabetes * T2D volunteer with any other anti-diabetic treatment other than metformin: insulin therapy, GLP-1 analogues, acarbose, sulphonylureas, repaglinide, SGLT2 agonists,… * Patient consuming in the two previous months regularly corticoids, beta-blocking drugs or immunosuppressing drugs * Patient with hemoglobin pathology * Patient with medical history of hemoglobinopathies (thalassemia, drepanocytosis…) * Patient with past bariatric surgery * Patient with medical history of endocrine diseases who may interfere with glucose metabolism according to the investigator (such as hyperthyroidism, acromegaly, hypercorticism…) * Patient treated with anticoagulants * Patient with a pace-maker * Uncontrolled high blood pressure defined by Systolic blood pressure \> 150 mmHg or Diastolic blood pressure \> 100 mmHg * Evidence of any other unstable or untreated clinically significant immunological, neoplasic, endocrine, haematological, gastrointestinal, hepatic, neurological or psychiatric abnormalities or medical disease with clinical significant relevance according to the investigator * Pregnant women or willing to become pregnant or lactating women * Women of childbearing age without an efficient contraceptive method according to the investigator * Patient under a restrictive diet or with a planned weight loss program during the study * Patient with severe eating disorders (e.g. anorexia nervosa, binge eating disorder and bulimia) according to the investigator * Patient without stable dietary habits or with specific diet (vegetarian, vegan, gluten-free…) according to the investigator * Patient who smokes more than 5 cigarettes per day * Patient regularly consuming more than 20 g/day of alcohol. Consumption of more than 3 alcoholic beverages per day is recognized as excessive. An alcoholic beverage is: 30 mL of spirituous, 120 mL of wine or 330 mL of beer * Patient regularly consuming recreational drugs * Adhesive plaster skin allergy * Claustrophobic patient * Patient willing to take the plane during the CGMS periods