IRON MAN beauty GWYNETH PALTROW feared she was suffering a stroke when her head exploded in “searing pain”, she says.

Gwynie was serving lunch to pals in her London abode when she suddenly felt stricken.

In her new cook book “It’s All Good: Delicious, Easy Recipes That Will Make You Look Good and Feel Great”, she writes, “One sunny afternoon in London, in the spring of 2011, I thought – without sounding overly dramatic – that I was going to die.

I had just served lunch in the garden at home… I had a vague feeling that I was going to faint, and I wasn’t forming thoughts correctly… I got a searing pain in my head, I couldn’t speak, and I felt as if I couldn’t breathe. I thought I was having a stroke.”

Docs discovered found Paltrow had suffered a migraine coupled with and a panic attack. She was also found to be “severely anemic” and “vitamin D deficient”.

She was ordered to change her diet post-haste.

She cut out coffee, eggs, sugar, shellfish, potatoes, wheat and meat, and says she felt so much better that she culled her fave recipes to compile for publication.

Paltrow admitted the scare prompted her and her family to undergo food allergy testing. “

“Everyone in my house is intolerant of gluten, dairy, chickens’ eggs, among many other surprising foods”.