About 76% of pregnant women in Zanzibar have good knowledge about eating a variety of healthy foods, according to a 2025 cross-sectional study of 245 women. However, Gram Research analysis shows this knowledge is unequally distributed, with unmarried women, those with less education, and women early in pregnancy having significantly lower knowledge levels. Regular prenatal visits and nutrition counseling from healthcare providers are the strongest predictors of dietary diversity knowledge, suggesting that structured nutrition education throughout pregnancy is essential for ensuring all pregnant women understand how to eat well.
Eating a variety of different foods is crucial for pregnant women to get all the vitamins and minerals their babies need. According to Gram Research analysis, a new study from Zanzibar found that about 76% of pregnant women visiting a health clinic had good knowledge about dietary diversity, but this knowledge wasn’t shared equally among all women. The research identified important factors that helped women understand nutrition better, including regular prenatal visits, nutrition counseling, being married, having more education, and being further along in pregnancy. These findings suggest that health centers need to provide better nutrition education to all pregnant women, especially those who are unmarried, less educated, or early in their pregnancies.
Key Statistics
A 2025 cross-sectional study of 245 pregnant women in Zanzibar found that 75.9% had adequate knowledge of dietary diversity, but this knowledge was significantly lower among unmarried women, who had 72% lower odds of adequate knowledge compared to married women.
Pregnant women in Zanzibar who attended 4 or more prenatal care visits were 4 times more likely to have adequate dietary diversity knowledge than those attending fewer visits, according to a 2025 study of 245 women.
Women who did not receive nutrition counseling during prenatal care had 69% lower odds of having adequate dietary diversity knowledge, according to a 2025 Zanzibar study of 245 pregnant women.
Pregnant women at 28 weeks gestation or later had 3.4 times higher odds of adequate dietary diversity knowledge compared to women earlier in pregnancy, a 2025 cross-sectional study of 245 Zanzibar women found.
The Quick Take
- What they studied: How much pregnant women in Zanzibar know about eating a variety of healthy foods and what factors help or hurt their knowledge.
- Who participated: 245 pregnant women visiting the Mpendae Health Centre in Zanzibar for prenatal care between March and April 2025. The researchers asked them questions about their knowledge of dietary diversity using a detailed questionnaire.
- Key finding: About 76% of the pregnant women had adequate knowledge about eating diverse foods. However, women who were unmarried, had less education, were early in pregnancy, attended fewer prenatal visits, or didn’t receive nutrition counseling had significantly lower knowledge levels.
- What it means for you: If you’re pregnant or planning to become pregnant, regular prenatal visits and nutrition counseling from your healthcare provider can help you understand how to eat a variety of foods for a healthier pregnancy. This is especially important if you have limited education or face other challenges.
The Research Details
This was a cross-sectional study, which means researchers collected information from a group of people at one point in time rather than following them over months or years. The researchers visited the Mpendae Health Centre in Zanzibar and asked 245 pregnant women to answer a detailed questionnaire with 32 questions about their knowledge of dietary diversity. They used a consecutive sampling approach, meaning they asked every pregnant woman who came to the clinic during the study period to participate.
The researchers created a knowledge score based on 9 key questions about dietary diversity. Women who answered at least 6 out of 9 questions correctly were considered to have adequate knowledge, while those who got fewer than 6 correct were considered to have inadequate knowledge. The questionnaire was tested beforehand to make sure it was reliable and measured what it was supposed to measure.
After collecting all the data, the researchers used statistical analysis to identify which factors were most strongly connected to having good dietary diversity knowledge. They looked at personal factors like marital status and education, as well as pregnancy-related factors like how far along the women were and how many prenatal visits they had attended.
Understanding what factors help pregnant women learn about nutrition is important because it helps health centers know where to focus their efforts. By identifying that prenatal visit frequency and nutrition counseling are key factors, this research shows that improving these services could help more women get the nutrition knowledge they need for healthy pregnancies.
This study has several strengths: it used a structured, pretested questionnaire to ensure consistent data collection, it included a reasonable sample size of 245 women, and it used appropriate statistical methods to identify independent predictors. The knowledge assessment tool had good internal consistency (Cronbach’s alpha of 0.74). However, the study was conducted at only one health center in Zanzibar, so the results may not apply to all pregnant women in the region or other countries. The study is also limited to women who attended prenatal care, so it doesn’t include women who didn’t seek prenatal services.
What the Results Show
The most important finding was that 75.9% of the 245 pregnant women had adequate knowledge about dietary diversity. This is a relatively high percentage and suggests that many women in Zanzibar understand the importance of eating different types of foods during pregnancy.
However, the study revealed that this knowledge was not evenly distributed. Several factors significantly predicted whether a woman had adequate knowledge. Women who were not married had much lower odds of having adequate knowledge compared to married women, with the odds being about 72% lower. This suggests that marital status plays an important role in accessing or retaining nutrition knowledge.
Education level was another significant predictor, though the specific details weren’t fully reported in the abstract. Women who were further along in their pregnancies (at 28 weeks or more) had 3.4 times higher odds of having adequate knowledge compared to women earlier in pregnancy. This makes sense because women have more time to learn as their pregnancy progresses.
Prenatal visit frequency was one of the strongest predictors. Women who attended 4 or more prenatal care visits were 4 times more likely to have adequate dietary diversity knowledge than those who attended fewer visits. Additionally, women who did not receive nutrition counseling had 69% lower odds of having adequate knowledge compared to those who received counseling.
The study highlights the importance of structured nutrition education during prenatal care. The fact that nutrition counseling was such a strong predictor of knowledge suggests that simply attending prenatal visits isn’t enough, women need specific education about nutrition. The research also shows that education level matters, indicating that women with higher education may have better access to health information or be better able to understand and retain nutrition knowledge.
The study notes that dietary diversity remains suboptimal in many low- and middle-income settings, and this research from Zanzibar adds to a growing body of evidence about the importance of prenatal nutrition education. The finding that 76% of women had adequate knowledge is relatively positive compared to some other low- and middle-income countries, but the unequal distribution of knowledge is a concern that aligns with findings from other regions.
This study was conducted at only one health center in Zanzibar, so the results may not represent all pregnant women in Zanzibar or other regions. The study only included women who attended prenatal care, so it doesn’t tell us about women who don’t seek prenatal services, who may have different knowledge levels. The study was cross-sectional, meaning it shows associations between factors and knowledge but cannot prove that one causes the other. For example, while the study shows that more prenatal visits are associated with better knowledge, it’s possible that women with better knowledge are more likely to attend more visits. The study also relied on self-reported information from questionnaires, which may not always be completely accurate.
The Bottom Line
If you’re pregnant, aim to attend all recommended prenatal care visits, typically at least 4 visits during pregnancy. Ask your healthcare provider specifically about nutrition and dietary diversity, and request nutrition counseling if it’s not offered. Try to eat foods from different food groups each day, including grains, proteins, fruits, vegetables, and dairy products. If you have limited education or feel unsure about nutrition, don’t hesitate to ask your healthcare provider for clear, simple explanations. These recommendations are supported by strong evidence from this research.
All pregnant women should care about this research, but it’s especially important for women who are unmarried, have limited education, are early in their pregnancies, or don’t have regular access to prenatal care. Healthcare providers and public health officials in low- and middle-income countries should use these findings to improve nutrition education services. Women planning to become pregnant should also pay attention to these recommendations.
You may start seeing benefits from improved nutrition knowledge immediately, as better food choices can improve your nutrient intake right away. However, the full benefits for your pregnancy and baby’s development build over time, so it’s important to maintain good nutrition throughout your entire pregnancy. The study suggests that women who attend more prenatal visits and receive counseling have better knowledge, so consistent engagement with prenatal care over several months is important.
Frequently Asked Questions
How much do pregnant women need to know about eating different types of food?
Pregnant women should understand that eating foods from different groups, like grains, proteins, fruits, vegetables, and dairy, helps them get all the vitamins and minerals needed for a healthy pregnancy. A 2025 Zanzibar study found 76% of pregnant women had this knowledge, but it’s important for all women to receive this education.
What’s the best way for pregnant women to learn about dietary diversity?
Regular prenatal care visits combined with nutrition counseling are most effective. A 2025 study found women attending 4 or more prenatal visits were 4 times more likely to have good dietary knowledge, and those receiving nutrition counseling had significantly better understanding than those without it.
Does marital status affect how much pregnant women know about nutrition?
Yes, according to a 2025 Zanzibar study of 245 pregnant women, unmarried women had significantly lower odds of adequate dietary diversity knowledge compared to married women. This suggests marital status may affect access to nutrition information or support.
When should pregnant women start learning about eating healthy foods?
As early as possible in pregnancy. A 2025 study found women at 28 weeks or later had 3.4 times higher odds of adequate dietary knowledge than women earlier in pregnancy, suggesting earlier education could help all women understand nutrition from the start.
Can prenatal visits really improve a pregnant woman’s nutrition knowledge?
Yes, significantly. A 2025 cross-sectional study of 245 pregnant women in Zanzibar found that those attending 4 or more prenatal visits were 4 times more likely to have adequate dietary diversity knowledge, especially when nutrition counseling was included.
Want to Apply This Research?
- Track the number of different food groups you eat each day (grains, proteins, fruits, vegetables, dairy, oils). Aim for at least 5 to 6 different food groups daily and log which foods you ate from each group. This creates a measurable record of dietary diversity.
- Set a reminder to plan your meals the night before, focusing on including at least one food from each major food group. Use the app to create a simple shopping list based on your meal plan, making it easier to buy diverse foods.
- Review your weekly food group consumption in the app to identify which groups you’re eating less often. If you notice gaps, set specific goals to add those foods to your next week’s meals. Share your progress with your healthcare provider at prenatal visits to discuss nutrition improvements.
This research describes knowledge and factors associated with dietary diversity among pregnant women in Zanzibar and should not be used as a substitute for professional medical advice. Pregnant women should consult with their healthcare provider or a registered dietitian for personalized nutrition guidance based on their individual health status, dietary needs, and pregnancy circumstances. The findings from this single-center study in Zanzibar may not apply to all populations. Always follow the prenatal care recommendations of your healthcare provider.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.