Health · Limited evidence
Nutritional Support During GLP-1 Treatment
Monitoring should prioritize symptoms, nutritional adequacy, protein, resistance training, and preserving lean mass and function.
Joint advisory from scientific societies, narrative review and Delphi consensus · 3 sources · 2 min
What the studies show
- Adequate protein, resistance training, and close monitoring of gastrointestinal symptoms are top priorities during care.
- Appetite suppression can lead to insufficient intake of essential nutrients.
- Planning for post-treatment maintenance is an integral part of care.
- Protein of 1.2 to 1.6 g/kg during weight loss (on adjusted body weight in obesity), never below 60 to 75 g per day.
- Strength training 2 to 3 times a week and at least 150 minutes of aerobic activity; more than 2 liters of fluids a day.
How Letz applies it
In injection mode, the plan never drops below 2 strength sessions (3 is recommended), daily protein has a floor of 1.2 g/kg (adjusted weight when BMI ≥ 30, minimum 75 g), water stays at 2 L or more, and the coach refers warning symptoms without interpreting them; dose and symptom logging remain off until clinical review.
Who it applies to
Adults on prescribed treatment with GLP-1 medications or related combinations for obesity.
Limits
Broad clinical guidance; does not validate app-based dose adjustments and does not replace a prescribing clinician or registered dietitian.
Sources
- Mozaffarian et al., American Journal of Clinical Nutrition, 2025 DOI 10.1016/j.ajcnut.2025.04.023
- Almandoz et al., Obesity, 2024 DOI 10.1002/oby.24067
- Sievenpiper et al., Obesity Pillars, 2026 DOI 10.1016/j.obpill.2025.100228
More in Health
- GLP-1: Lean Mass and Regain After DiscontinuationThese medications produce substantial weight loss, part of which is lean mass; upon discontinuation, much of the weight returns. Exercise combined with treatment better preserved body composition and weight maintenance.
- Daily StepsMore steps per day are associated with lower mortality up to an age-dependent plateau; in weight loss programs, accumulating around 10,000 steps with a portion at a moderate pace was associated with greater weight loss.
- Sedentary TimeAny intensity of physical activity, including light intensity, is associated with lower mortality, while more sedentary time is linked to higher risk, following a non-linear dose-response relationship.
- Strength, Conditioning, and LongevityMuscle-strengthening activities for 30 to 60 minutes per week and higher cardiorespiratory fitness are associated with lower mortality and fewer chronic diseases.