A 7-month-old baby died when his health-food nut parents fed him a diet of quinoa “milk” and other gluten-free, lactose-free dairy alternatives, according to reports.

The boy’s mom and dad diagnosed him with food allergies but didn’t actually consult a doctor — even after the tot started gasping for air in his final days, Belgian prosecutors say.

“The parents determined their own diagnosis that their child was gluten intolerant and had a lactose allergy,” the lawyers told a courtroom, per The Independent.

“Not a single doctor had a dossier about Lucas and child protection services did not know about them.”

The boy, who was only identified by his first name, Lucas was just 9.47 pounds when he died in 2014 — half the size of the average baby his age, the paper reports.

An autopsy found he had a completely empty stomach when he eventually succumbed to dehydration and malnutrition, and a prayer card was also found tucked into his diaper, according to the Daily Mail.

The parents, identified as Peter S, 34, and Sandrina V, 30, first took their dying son to a homeopathic doctor, who urged them to go to a real hospital, the paper reports.

The hippies run a natural food store, and claimed they never noticed anything wrong with their tiny tot.

“Sometimes he gained a little weight, sometimes he lost a little. We never wished for the death of our son,” Sandrina said, per the Independent.

In addition to quinoa milk, they also fed him oat milk, rice milk, buckwheat milk, and semolina milk from their store, according to the parents’ lawyer.

“Lucas had an eating disorder. He got cramps when he was fed with a bottle and his parents tried out alternatives,” said their attorney Karine Van Meirvenne.

The parents are both facing sentences of up to 18 months for contributing to Lucas’s death.