A study of 775 Turkish families found that 28% experienced food insecurity, and these families had significantly higher obesity rates in both parents and children. According to Gram Research analysis, food insecurity was strongly linked to larger household size and lower income, showing that struggling to afford food is connected to weight problems in entire families, not just children.

A new study of 775 families in Turkey found that when families struggle to afford enough food, both parents and children tend to weigh more. According to Gram Research analysis, about 28% of the families studied didn’t have reliable access to food. Surprisingly, food insecurity—not having enough money for groceries—was linked to higher obesity rates in both adults and kids. The research shows that families with more children and lower incomes faced the biggest challenges with food security. These findings highlight why helping families afford nutritious food is important for preventing weight problems.

Key Statistics

A cross-sectional study of 775 families in Turkey published in 2026 found that 27.9% of households experienced food insecurity, with these families showing significantly higher rates of overweight and obesity in both parents and children.

Research reviewed by Gram found that among 775 Turkish families, those experiencing food insecurity had larger household sizes, more children, and fewer employed adults compared to food-secure families.

In a 2026 study of 775 families, the number of children and total household income were identified as the strongest predictors of food insecurity status, with statistical significance at p=0.001.

A Turkish study of 775 families found that food insecurity affected entire households, with both parents and children in food-insecure families showing higher prevalence of overweight and obesity compared to food-secure families.

The Quick Take

  • What they studied: How struggling to buy enough food affects weight in families, and whether eating Mediterranean-style foods (lots of vegetables, fish, and olive oil) helps protect against obesity.
  • Who participated: 775 families in Turkey with children aged 6-14 in school. Parents ranged from 18-65 years old. Families had different income levels and household sizes.
  • Key finding: Nearly 28% of families couldn’t reliably afford enough food, and these families had higher rates of overweight and obesity in both parents and children compared to families with food security.
  • What it means for you: If your family struggles with food costs, you’re not alone—and it’s not a personal failure. This research shows the problem is real and affects health. Knowing this can help you seek community resources like food banks or nutrition programs designed to help.

The Research Details

Researchers collected information from 775 families in Turkey using an online survey. They asked parents questions about their household income, how many children they had, and whether they had enough money to buy food. They also measured the height and weight of both parents and children to calculate BMI (body mass index), which shows whether someone is at a healthy weight. The families answered questions about what foods they ate, including whether they followed a Mediterranean diet pattern with lots of vegetables, fish, and olive oil.

This type of study is called ‘cross-sectional,’ which means researchers took a snapshot of families at one point in time rather than following them over months or years. This approach helps identify patterns and connections between food insecurity and weight, but it can’t prove that one directly causes the other.

The researchers used a standard tool called the USDA Household Food Security Survey Module to measure food insecurity. This 18-question survey asks about experiences like running out of food, skipping meals, or worrying about affording groceries. They also used a special scoring system to measure how closely children followed Mediterranean diet patterns.

Understanding why some families struggle with food insecurity and how it affects weight is crucial for public health. This study provides real-world evidence from Turkey that can help policymakers and health workers identify families who need help. By measuring both parents and children, the research shows that food insecurity affects entire families, not just kids.

This study has several strengths: it included a reasonably large sample of 775 families, used validated measurement tools for food insecurity and diet quality, and collected data from both parents and children. However, because it’s a cross-sectional study (a snapshot in time), it can show relationships between factors but cannot prove that food insecurity causes obesity. The study relied on families reporting their own information online, which could introduce some inaccuracy. The research was conducted in Turkey, so findings may not apply equally to all countries with different food systems and social support programs.

What the Results Show

The study found that 27.9% of households—more than one in four families—experienced food insecurity. These families with food insecurity had noticeably larger household sizes, more children, and fewer employed adults compared to families with reliable food access.

When researchers looked at weight, families experiencing food insecurity had significantly higher rates of overweight and obesity in both parents and children. This surprising pattern shows that struggling to afford food doesn’t lead to underweight children, but rather to weight problems. This happens because when money is tight, families often buy cheaper, processed foods that are high in calories but low in nutrition.

The research identified two main factors strongly connected to food insecurity: the number of children in the household and total family income. Families with more children and lower incomes were much more likely to experience food insecurity. Interestingly, the study also looked at Mediterranean diet adherence (eating more vegetables, fish, and healthy fats), but the paper suggests this may play a protective role against some of the negative effects of food insecurity.

The study revealed that employment status was important—households with fewer working adults were more likely to experience food insecurity. Socio-economic status (how much money a family has) was strongly connected to both food insecurity and obesity rates. The research also noted that meal patterns differed between food-secure and food-insecure families, with insecure families eating fewer meals with vegetables and fish.

This research confirms what other studies have found: food insecurity is linked to obesity, not just underweight. Previous research has shown this pattern in developed countries, and this Turkish study demonstrates it also occurs in middle-income countries. The finding that food insecurity affects entire families (both parents and children) aligns with other research showing that economic stress impacts household health broadly. The study adds to growing evidence that simply having enough calories isn’t the same as having access to healthy, nutritious food.

The study has several important limitations. Because it’s a snapshot in time, researchers cannot prove that food insecurity causes obesity—only that they occur together. The study relied on families reporting their own height, weight, and food situations online, which could be inaccurate. The research was conducted only in Turkey, so results may not apply to other countries with different food systems, prices, or social safety nets. The study didn’t measure other important factors that might affect weight, like physical activity levels or stress. Finally, the online survey method means families without internet access weren’t included, which could have skewed results.

The Bottom Line

Strong evidence supports screening families for food insecurity as part of routine health care, especially for children. Communities should expand access to food assistance programs, food banks, and nutrition education for low-income families. Schools can play a role by offering breakfast and lunch programs. Healthcare providers should ask about food security and connect families to resources. Medium confidence: Mediterranean diet education may help, but it’s most effective when combined with actual access to affordable healthy foods.

Parents and caregivers concerned about family nutrition and weight should know about food insecurity screening. Healthcare providers should use this information when treating childhood obesity—addressing food access may be as important as diet advice. Policymakers and public health officials should prioritize food security programs. Teachers and school administrators can help identify families needing support. This research is less relevant for families with reliable food access and stable incomes, though the Mediterranean diet principles remain healthy for everyone.

Changes in food security status may take months to years to achieve through policy and program changes. If a family gains access to food assistance, improvements in diet quality might appear within weeks, but weight changes typically take 2-3 months to become noticeable. Long-term health benefits from improved food security and better nutrition develop over years.

Frequently Asked Questions

Why do families without enough food money have overweight children instead of underweight children?

When families have limited budgets, they often buy cheaper processed foods high in calories but low in nutrition. These foods are filling but don’t provide healthy nutrients, leading to weight gain rather than healthy growth. Food insecurity creates stress that can also affect eating patterns and metabolism.

What percentage of families in this study couldn’t afford enough food?

The 2026 study found that 27.9% of the 775 Turkish families—nearly 1 in 4 households—experienced food insecurity, meaning they sometimes ran out of money for groceries or worried about affording enough food.

Does eating Mediterranean diet foods help prevent obesity in families with food insecurity?

The study suggests Mediterranean diet patterns may provide some protection, but only when families can actually afford these foods. Vegetables, fish, and olive oil are often more expensive, so food security (having money for groceries) is the first priority before diet pattern changes.

What factors make families most likely to experience food insecurity?

The research identified two main factors: having more children in the household and lower total family income. Families with fewer employed adults also faced higher food insecurity. These economic factors were statistically significant predictors at p=0.001.

Can this study prove that food insecurity causes obesity?

No, this cross-sectional study shows that food insecurity and obesity occur together but cannot prove one causes the other. It’s a snapshot in time, not a long-term follow-up study. Other factors like stress, activity levels, and food choices also play roles.

Want to Apply This Research?

  • Track weekly grocery budget and meals eaten per day. Users can log whether they had enough food for all family members each week, creating a simple food security score (1-10) alongside weight tracking.
  • Set a weekly goal to purchase one Mediterranean diet staple (olive oil, canned fish, dried beans, or seasonal vegetables) within budget. Log meals that include these ingredients to build awareness of affordable healthy eating patterns.
  • Monthly check-ins on food security status combined with weight tracking. Users can note which weeks had food stress and correlate with eating patterns and weight changes. This helps identify personal patterns and triggers for seeking help.

This research is observational and cannot prove that food insecurity directly causes obesity. Results are from Turkey and may not apply equally to all countries. If you’re concerned about your family’s food security or weight, consult with a healthcare provider or registered dietitian who can assess your individual situation and recommend appropriate resources and interventions. This article is for educational purposes and should not replace professional medical advice.

This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.

Source: Determinants of BMI in parents and children: the roles of food insecurity and Mediterranean diet adherence.BMC pediatrics (2026). PubMed 42243775 | DOI