Getting kids to eat fruits and vegetables can feel like an uphill battle for many parents. For those struggling, a new study offers reassurance: your parenting skills may not be to blame. Researchers at University College London (UCL) have found that genetics play a significant role. These genetics influence how picky a child is about their food choices. This discovery sheds light on why some children resist certain foods, despite parents’ best efforts.
KEY FINDINGS
The study analyzed food preferences in over 2,400 pairs of twins. It revealed that genetics account for:
- 60% of fussy eating behaviors in children as young as 16 months.
- 74% of fussiness in children aged 3 to 13 years.
The researchers found greater similarities in fussy eating behaviors among identical twins compared to non-identical twins. Identical twins share identical DNA, while non-identical twins share only 50%.
This finding underscores the role of genetics in shaping food fussiness. Yet, as children grow, unique environmental factors like friends and social influences, also play a part.
FOOD FUSSINESS: MORE THAN JUST A PHASE
Food fussiness involves a reluctance to try new foods. It also includes a preference for a limited range of textures and tastes.
Lead author Dr. Zeynep Nas explained: “Fussy eating is largely innate. This may help alleviate parental blame. It’s not a result of parenting but a persistent behavior.”
Nonetheless, the study also highlights that environmental factors, especially in early years, can shape dietary habits.
PRACTICAL ADVICE FOR PARENTS: ENCOURAGING HEALTHY EATING
While genetics play a significant role, parents can adopt strategies to help children explore a wider variety of foods:
1. Start Early
The study suggests that early interventions are most effective. Introducing a variety of fruits and vegetables during toddler years can make a lasting impact.
2. Repetition Matters
Repeated exposure to the same foods can gradually reduce fussiness. Familiarity can turn reluctance into acceptance.
3. Create Positive Mealtime Experiences
Eating as a family and making mealtimes enjoyable can encourage children to try new foods.
Senior author Dr. Alison Fildes noted: “Fussy eating can extend beyond early childhood, but it’s not fixed. Parents can continue supporting their children through adolescence.”
THE ROLE OF FRIENDS AND PEERS
As children grow, their dietary habits are influenced by friends and social settings. Adolescence marks a shift where peers may significantly impact food choices. This highlights the importance of fostering healthy eating habits early, as they can provide a strong foundation for future decisions.
LIMITATIONS AND FUTURE RESEARCH
The study predominantly included white British households from wealthier backgrounds. The authors acknowledge that food culture, parental practices, and food security differ in non-Western populations.
Future research should explore diverse cultural contexts to provide a broader understanding of fussy eating behaviors worldwide.



































