Here is our honest take.
Jenn stopped walking two days ago. Her human did everything right, Epsom salt bath, a careful inspection for bumblefoot, drawing salve applied. No black dots. No swelling. The kind of thorough, loving care any of us would give our own feathered friends. And still, Jenn's legs stopped working.
That's the part that gets me. Not the mystery itself, but the moment when you've checked every box and your hen is lying there anyway. You've treated for vitamin deficiency, offered brewers yeast, scrambled eggs, enhanced water. Yesterday she ate like a champ but wouldn't drink. Today she drinks but barely eats. Her eyes are bright, her feathers are glossy, her skin looks perfect. She looks healthy in every way except the one that matters most: she cannot use her legs.
This is the raw, unglamorous reality of chicken keeping. We joke about fowl play and cluck-tastic antics, but when one of our girls goes down, the humor stops. The fear creeps in. And it's not the silly fear of a hen pecking your ankle, it's the heavy, sinking fear of not knowing what's wrong while a creature you love gets worse. The poster here says they're assuming a vitamin issue that needs time to resolve, but they're also asking for help. That takes guts. It takes the kind of vulnerability we should all feel comfortable sharing.
So what would we tell a reader who brought us this exact story? The same thing we tell ourselves in the coop at midnight with a flashlight: trust your gut, but broaden your net. Leg paralysis in a hen with no visible injury, no swelling, and good appetite can point to Marek's disease, especially if she's young or unvaccinated. It can be a spinal injury from a hard landing. It can be a tumor pressing on the sciatic nerve. Vitamin deficiency is a real possibility, but it takes weeks to show improvement, not days. If Jenn isn't worsening but isn't improving, supportive care is your best weapon, keep her clean, keep her hydrated, keep her eating. And if she is worsening, a avian vet can do a simple physical exam to check for pain responses or palpable masses that you can't see through feathers.
Here is the concrete point: don't stop looking. The barn is full of answers, but they don't always come easy. Jenn's human is doing the hard work right now, washing her, feeding her, watching her every breath. That's not failure. That's the messy, heartbreaking, absolutely necessary love that keeps our flocks alive. Keep asking. Keep treating. And when your gut says "vitamin issue," keep an eye on everything else too. Sometimes the mystery doesn't solve itself. But the mystery also doesn't mean you're doing it wrong.