No illness/health problem is being investigated. Investigation of dietary behavior, nutritional knowledge, and motivations for following ketogenic diets, as well as determination of metabolic markers and nutritional status in healthy adults in Germany who have been following a ketogenic diet for at least 6 months.
Conditions
Interventions
Group 1: Online survey followed by tests at the study center (24-hour recall, anthropometric data, blood pressure, BIA, indirect calorimetry, ultrasound, capillary blood)
further capillary blood and sensor measurements at home and second 24-hour recall
Group 2: Online survey followed by self-measurement of anthropometric data (body weight/height, waist/hip circumferenc
optional capillary blood measurements at home and additional optional measurements by external providers (blood pressure, BIA, indirect calorimetry, ultrasound)
Sponsors
FH Münster - University of Applied Sciences Center for Nutrition & Therapy (NuT)
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: BMI 18.5–29.9 kg/m2 Regardless of gender Resident in Germany Following a ketogenic diet for at least 6 months (self-reported) Sufficient knowledge of the German language to complete the questionnaires and nutritional assessment methods
Exclusion criteria
Exclusion criteria: No consent given to participate in the study Minor age Pregnancy, breastfeeding Presence of a serious illness or acute illness at the time of examination (during examination at the study center) Diagnosed metabolic disorder or epilepsy, or use of a ketogenic diet required for nutritional therapy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Eating habits, nutritional knowledge, and motivations for following ketogenic diets | — |
Secondary
| Measure | Time frame |
|---|---|
| Metabolic markers (glucose, HbA1c, ketone bodies, cholesterol, triglycerides, HDL, LDL) Nutritional status (body weight, body height, body mass index (BMI), waist circumference, hip circumference, waist-to-hip ratio (WHR), bioelectrical impedance analysis (BIA), indirect calorimetry, bone density measurement (heel ultrasound)) Comparison of methods for determining metabolic markers (glucose and ketone bodies using capillary blood and/or interstitial sensor systems) Determination of different types of ketogenic diets Comparison of subjective questionnaire data and objective measurements to validate the surveys Collection of additional subjective data, such as challenges, physical complaints, and attitudes toward the ketogenic diet | — |
Countries
Germany
Contacts
Public ContactTobias Fischer
FH Münster - University of Applied SciencesFachbereich Oecotrophologie Center for Nutrition & Therapy (NuT)
Outcome results
None listed