Dietary Salt for Eczema

(iDOSE Trial)

This trial explores whether a low-sodium diet can reduce eczema severity. Researchers aim to determine if reducing salt intake improves eczema and affects skin sodium levels. Participants will follow a low-salt diet and alternate between taking sodium chloride tablets (salt tablets) and placebo tablets. Ideal candidates are those managing eczema who are willing to follow a low-salt diet and undergo non-contrast MRI scans. As a Phase 4 trial, this study involves an FDA-approved treatment and seeks to understand its benefits for a broader patient population.

The trial does not specify if you must stop all current medications, but you cannot take medications that affect sodium excretion or certain antibiotics and immunomodulatory drugs. If you're using topical or systemic eczema treatments, you can continue them if you've been on a stable dose for at least 2 months.

Research has shown that a low-sodium diet might help manage eczema, also known as atopic dermatitis. Studies have found that reducing salt intake is linked to fewer eczema flare-ups, suggesting that a low-sodium diet could be a safe option for people with eczema.

Additionally, there is no strong evidence of major risks from reducing salt intake. Research suggests it's a simple and affordable way to help, with few side effects reported. Most people find a low-sodium diet easy to follow.

Researchers are excited about the low-sodium diet for eczema because it offers a novel approach compared to traditional treatments like topical corticosteroids and moisturizers. Unlike these standard options, which focus on managing inflammation and hydration from the outside, a low-sodium diet targets the condition internally by potentially reducing inflammation throughout the body. This dietary intervention could provide a non-invasive and accessible way to manage eczema, appealing particularly to those seeking lifestyle-based solutions.

Research has shown that eating less salt might help people with eczema. One study found that individuals with eczema had 30 times more salt in their skin than those without it. Another study demonstrated that reducing salt intake could decrease the chances of eczema flare-ups, which are sudden worsening of symptoms. Participants who followed low-salt guidelines had a 12% lower chance of experiencing eczema. This trial will compare the effects of sodium chloride tablets and placebo tablets on eczema symptoms. These findings suggest that a low-salt diet could be an effective and low-risk way to manage eczema symptoms.¹⁴⁶⁷⁸