The full answer
Nutrient stores take time to rebuild
Fatigue often lingers after starting a gluten-free diet because nutrient deficiencies — particularly iron, B12, and folate — built up over months or years of malabsorption and can take a while to fully correct, even once the underlying intestinal damage starts healing.
What can help
Follow-up bloodwork to check for ongoing vitamin and mineral deficiencies can identify whether targeted supplementation is needed, rather than waiting for fatigue to resolve on its own.
Important context
Individual symptoms, reactions, medical histories, food products, and local labeling rules can vary. Community experiences are not medical evidence.
For personal medical decisions, diagnosis, testing, or treatment, consult a qualified healthcare professional.