Jesy Nelson, 34, has revealed she ended her four-year relationship with fiancé Zion Foster after their one-year-old twins, Ocean and Story, were diagnosed with Spinal Muscular Atrophy (SMA) Type 1. The couple clashed over how to handle the rare muscle-wasting condition, with Nelson deciding they would be 'better off apart,' as she shared in an upcoming Prime Video documentary. Meanwhile, her advocacy for NHS screening has achieved a milestone: SMA will be debated in Parliament on June 22, and a heel-prick pilot for 400,000 babies is set to begin in October 2026.

Jesy Nelson and Zion Foster — A Relationship Fractured by SMA Type 1

As reported by The Mirror, which obtained excerpts from the documentary, the moment Jesy and Zion learned of their twins' diagnosis was captured on film. Zion admitted, 'I am not equipped to deal with this, I am out of my depth, emotionally physically and mentally.' Jesy later explained that the trauma of the diagnosis 'can tear you apart' and that they were 'clashing' over how to cope. She made the decision to end the relationship, stating, 'The house was not like that when we were together… I decided we would be better off apart.'

From 'Not Equipped' to Advocacy: The Twin Fight for Treatment and Screening

Jesy Nelson has channeled her personal struggle into a public capaign. despite the devastating prognosis that the twins may not survive beyond age two, she chose to continue filming her Prime Video series, using the platform to push for change. As she told the Daily Mail, the daily medical procedures leave her feeling like she is 'hurting them' as they cry and scream. Her efforts paid off: Health Secretary Wes Streeting confirmed that a pilot for SMA screening via the newborn heel-prick test will start in October 2026 — expedited from the original January 2027 timeline. The pilot will test an estimated 400,000 babies in England.

A Parliamentary Showdown on June 22 — And What It Means for SMA Families

The UK government has confirmed that a petition to add SMA to newborn screening in England will be debated in Parliament on June 22. This follows the National Screening Committee's earlier rejection of checks for another muscular disease . Jesy Nelson celebrated the news on Instagram , calling it a 'major milestone for the SMA community.' The political backing, combined with the accelerated pilot, signals a shift in how rare diseases are prioritised in public health. However, the source notes that the debate is scheduled, but the outcome is not yet known.

The Twins' Uncertain Prognosis and the Limits of the 2026 Pilot

While Jesy Nelson has been transparent about her daughters' SMA Type 1 diagnosis, several questions remain unanswered. The source does not specify the current health status of Ocean and Story beyond their initial prognosis. additionally, the screening pilot announced for October 2026 is initially limited to 400,000 babies in England; it remains unclear when or if the test will be rolled out nationwide. The relationship between Jesy and Zion also remains in a grey area — Jesy said 'there's no bad feeling' and they 'still get on,' but further details about co-parenting arrangements have not been disclosed.