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Living with D-Glyceric aciduria

A rare inherited metabolic condition with very different effects, from mild speech delay to severe brain problems.

Understanding D-Glyceric aciduria

D-glyceric aciduria is a rare inherited metabolic condition in which D-glyceric acid is passed in the urine because an enzyme (D-glycerate kinase) is missing.

Effects vary widely. Some people have a severe brain illness, long-lasting acid buildup in the blood, delays, and seizures. Others have only mild speech delay and seemingly normal development.

Signs & symptoms

Symptoms vary a lot from person to person. GARD lists these among the most common:

  • Delayed development overall
  • Delayed speech and language
  • Intellectual disability
  • Seizures
  • Small head size (microcephaly)
  • Low muscle tone in infants

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include genetic specialists.

  3. Consider genetic testing

    Changes in GLYCTK are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can genetic testing of the GLYCTK gene confirm the diagnosis?
What urine or blood tests will monitor this condition?
Which therapies can help with speech and development?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Recessive
GenesGLYCTK

Changes in the GLYCTK gene cause this condition. It is autosomal recessive, so a child inherits a changed copy of the gene from each parent.

GeneticInherited Metabolic

Also known as: d-glycerate kinase deficiency; d-glyceric acidemia; d-glycericacidemia; deficiency of glycerate kinase; glycerate kinase deficiency

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · D-Glyceric aciduriaGARD ID 234 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with D-Glyceric aciduria.

Explore the D-Glyceric aciduria blog

Explore research for D-Glyceric aciduria

Explore actively recruiting D-Glyceric aciduria studies with HealthSpark.

HealthSpark

Find actively recruiting studies for D-Glyceric aciduria with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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