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Protocol · Neurological Health

Proximal Myotonic Myopathy (DM2/PROMM) Supportive Care Protocol

Vitamin D and Creatine are the core of this stack, with 6 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Proximal Myotonic Myopathy (DM2/PROMM) Supportive Care.

We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.

The stack

8 supplements · 1 graded

Amount listed in this protocol; not a recommendation.

Supplements in the Proximal Myotonic Myopathy (DM2/PROMM) Supportive Care protocol, with the amount the protocol lists, the grade on file and confirmed studies
GradeSupplementAmount listedWhy it’s in the stackEvidence on file
Primary stackThe core of this protocol
Vitamin DAmount listed: 2,000–4,000 IU daily (monitor levels; target 40–60 ng/mL)

Supports muscle function; deficiency common in muscular dystrophies and worsens weakness

Not graded yet
CreatineAmount listed: 3–5 g daily

May help maintain muscle strength and function in myopathies

  • Fatigue Symptoms: improves
  • Power Output: improves
  • Muscular Dystrophy Symptoms: improves
Grade C for Fatigue Symptoms20 people
Supporting stackListed as additions to the core
Coenzyme Q10Amount listed: 200–400 mg daily

Supports mitochondrial function in muscle; may help with fatigue

Not graded yet
L-CarnitineAmount listed: 1–2 g daily

Supports fatty acid metabolism in muscle; may help with fatigue

Not graded yet
Omega-3 Fatty AcidsAmount listed: 1–2 g EPA+DHA daily

Anti-inflammatory; may support muscle health

Not graded yet
MagnesiumAmount listed: 300–400 mg daily

Supports muscle function; may help with muscle cramps and pain

Not graded yet
TaurineAmount listed: 1–3 g daily

Abundant in muscle; studied for myotonic disorders

Not graded yet
Vitamin EAmount listed: 400 IU daily

Antioxidant; supports muscle membrane health

Not graded yet

How this protocol works

In plain language

Proximal Myotonic Myopathy (PROMM), also called Myotonic Dystrophy Type 2 (DM2), is a genetic muscle disorder caused by a mutation in the CNBP/ZNF9 gene. Unlike the more common DM1 (which affects distal muscles first), DM2 primarily affects proximal muscles (hips, thighs, shoulders). Symptoms include muscle weakness, myotonia (difficulty relaxing muscles), muscle pain, fatigue, cataracts, and sometimes heart and endocrine problems. Symptoms typically begin in adulthood and are generally milder than DM1.

CRITICAL: DM2/PROMM requires management by a neuromuscular specialist. There is no cure, but management focuses on: monitoring for cardiac issues (EKG, may need pacemaker), screening for cataracts, managing diabetes if it develops, treating pain and fatigue, physical therapy to maintain function, and avoiding certain anesthetics (can cause complications). Annual cardiac screening is essential as arrhythmias and conduction defects can occur. These supplements may support muscle health but are NOT treatments for the underlying genetic condition.

Vitamin D* supports muscle function, and deficiency is common in neuromuscular disorders. Maintaining adequate levels may help preserve strength.

Creatine* has been studied in muscular dystrophies with some evidence of modest benefit for muscle strength and function.

Coenzyme Q10* supports mitochondrial function in muscle and may help with the fatigue that is common in DM2.

L-Carnitine* supports muscle energy metabolism.

Omega-3 Fatty Acids* have anti-inflammatory effects.

Magnesium* supports muscle function and may help with muscle pain and cramps.

Taurine* is abundant in muscle and has been specifically studied for myotonic disorders.

Vitamin E* provides antioxidant protection for muscle membranes.

Expected timeline: Supplements provide supportive benefits over months of use. DM2 typically progresses slowly - maintenance of muscle function through physical therapy and supportive care is the goal.

Printed from drgrey.ai/protocols/proximal-myotonic-myopathy. For education only; not medical advice. Talk to a clinician before starting any supplement.