Associations Between Broader Autism Phenotype and Dietary Intake: A Cross-Sectional Study (Japan Environment & Children's Study).

Hirokawa et al. (2020) asked pregnant women to fill out two surveys. One measured broad autism traits. The other listed what they ate each day.

The team compared diets of women high on autism traits with women low on those traits. They looked at vegetables, fruit, fish, and vitamins.

Moms-to-be with more autism-like traits ate fewer vegetables, fruits, and fish. They also took in less folate, vitamin C, and iron.

The differences were small but steady across the whole group.

Nisticò et al. (2023) found the same link in autistic adults. Visual and taste sensitivity predicted eating problems. Together the papers show autism traits shape food choices from sub-clinical moms to diagnosed adults.

Riccio et al. (2018) give a reason: kids who carry a bitter-sensitive gene reject veggies. Moms with BAP may share that gene and the same bitter taste, so they skip greens too.

Peterson et al. (2019) and Bigby et al. (2014) prove ABA feeding tricks work for kids. Their results say you can change picky eating once it starts, but Kumi’s data hint you might prevent it by helping moms eat better during pregnancy.

If a client shows broad autism traits, ask about her diet the moment you learn she is pregnant. A short food diary can spot low fish, fruit, or veggie intake. Add a nutrition referral or picture-menu prompt right away. Better prenatal food gives baby more folate, iron, and omega-3s, and may cut later feeding battles you would treat with ABA.