Frozen shoulder, or adhesive capsulitis, causes pain and marked stiffness in the shoulder. Everyday movements such as dressing, reaching a cupboard or fastening clothing behind the back can become difficult, and night pain may disturb sleep. Symptoms often develop gradually and can continue for months or, in some cases, years.
The capsule surrounding the shoulder joint becomes inflamed, thickened and tight. Sometimes this follows injury or surgery that has limited normal arm movement, but often there is no obvious trigger. Diabetes increases the likelihood of frozen shoulder, and thyroid disease is also associated with it. These links do not mean that a thyroid or blood-glucose problem is necessarily causing an individual case.
Assessment and treatment
Recognising serious symptoms
See a GP or physiotherapist when pain and stiffness do not settle or movement is substantially restricted. Other shoulder conditions can produce similar symptoms, so diagnosis matters. Treatment usually combines pain relief with a carefully paced return of movement. Paracetamol or an anti-inflammatory medicine may be appropriate for some people; a clinician or pharmacist can advise on suitability. A corticosteroid injection may be offered when pain is severe.
Complete rest is not usually helpful. Gentle movement and exercises prescribed by a physiotherapist can maintain or restore range, while strenuous unsupervised exercise may aggravate pain. Heat wrapped in a towel can be soothing for up to 20 minutes. Recovery is often slow, but most people improve.
Food and daily support
No particular diet has been shown to release the tightened shoulder capsule. Regular meals based on vegetables, fruit, whole grains, pulses, suitable protein foods and unsaturated fats support general health during recovery. Adequate protein is useful when rebuilding strength, while oily fish, nuts and seeds provide unsaturated fats.
People with diabetes should continue their agreed monitoring and treatment, because good glucose management supports broader health. Thyroid symptoms should be assessed rather than treated with kelp or iodine without testing. Excess iodine can worsen thyroid dysfunction.
Useful supplements
Supplements should be selected for the individual rather than used automatically. Product directions and advice from an appropriately qualified professional should take precedence over general information.
| Supplement | Effects |
|---|---|
| Krill oil or marine fish oil | Provides EPA and DHA, described as supporting normal cellular function. |
| Coenzyme Q10 | Supports mitochondrial energy production within cells. |
| Vitamin B5 | Included to support normal adrenal function. |
| Iodine | Supports normal thyroid-hormone production when iodine intake is insufficient. |
| Hop alpha acids | Intended to help reduce pain and inflammatory activity. |
These products do not replace pain relief, physiotherapy or investigation of an underlying condition. Fish oil and hop products may interact with medicines, CoQ10 may affect anticoagulants, and high iodine intake can be harmful. The original suggestion of high-dose iodine should only be considered under appropriately qualified clinical supervision.
A practical plan is usually more valuable than an aggressive one: control pain sufficiently to permit gentle movement, follow exercises suited to the current stage, protect sleep where possible and review progress when improvement stalls.
Looking for personalised nutrition and lifestyle support? An FNTP member may be able to help you explore an approach suited to your individual needs. Find an FNTP practitioner.
This article is for general education and does not replace individual medical advice, diagnosis or treatment.
