Understanding the Difference: Folate vs. Folic Acid
Before diving into specific foods, it's essential to understand the distinction between folate and folic acid, two forms of vitamin B9. Folate is the name for the form of the vitamin that occurs naturally in foods. In contrast, folic acid is the synthetic, man-made form that is added to fortified foods and supplements. While your body processes them differently, both contribute to your total vitamin B9 intake. For example, studies have shown that folic acid is more easily absorbed by the body than natural folate.
Fortified Foods Containing Folic Acid
Since 1998, the U.S. Food and Drug Administration (FDA) has required food manufacturers to fortify certain grain products with folic acid to help prevent neural tube defects. This has been a successful public health initiative and has made it easier for many people to meet their daily intake recommendations.
- Enriched Grain Products: Look for the word “enriched” on the ingredient label. This often applies to:
- Breads
- Flours (including cornmeal)
- Pastas
- White rice
 
- Breakfast Cereals: Many popular breakfast cereals are heavily fortified with folic acid, sometimes providing 100% of the recommended daily value in a single serving.
Foods with Naturally Occurring Folate
While fortified foods are a reliable source of folic acid, incorporating foods with naturally occurring folate is also crucial for a balanced diet. Here is a comprehensive list of food groups rich in folate:
Legumes
Legumes are excellent sources of folate. Just one cup of cooked lentils provides a large percentage of your daily needs.
- Lentils
- Chickpeas
- Black-eyed peas
- Kidney beans
- Black beans
Dark Green Leafy Vegetables
These vegetables are among the highest natural sources of folate, though cooking can reduce the vitamin's potency.
- Spinach
- Asparagus
- Brussels sprouts
- Broccoli
- Romaine lettuce
Fruits and Juices
Certain fruits and their juices are also good sources of folate.
- Oranges and orange juice
- Avocado
- Papaya
- Mango
- Cantaloupe
Animal Products and Nuts
Several other foods also contribute to your folate intake.
- Beef liver (an exceptionally rich source)
- Eggs (especially the yolk)
- Peanuts
- Sunflower seeds
Comparison Table: Fortified vs. Natural Sources
To help visualize the different ways you can get this essential nutrient, here is a comparison of typical fortified and natural food sources.
| Food Type | Example | Form of Vitamin B9 | Typical Source | Notes | 
|---|---|---|---|---|
| Fortified Cereal | Most commercial cereals | Folic Acid (synthetic) | Added during processing | Amount is clearly labeled on nutrition panel; very stable. | 
| Beef Liver | Cooked, 3 ounces | Folate (natural) | Animal product | Exceptionally high in folate, but often high in cholesterol. | 
| Enriched Pasta | White pasta | Folic Acid (synthetic) | Added during processing | Mandated in many countries to reduce neural tube defects. | 
| Cooked Spinach | ½ cup boiled | Folate (natural) | Plant-based | Rich source, but some folate is lost during cooking. | 
| Lentils | ½ cup cooked | Folate (natural) | Plant-based (legume) | Excellent source; cooking has less impact than on greens. | 
| Orange Juice | ¾ cup | Folate (natural) | Fruit-based | Good source of natural folate. | 
How Cooking Affects Folate Content
As a water-soluble vitamin, folate can be sensitive to heat and can be lost during cooking, particularly boiling. Steaming or microwaving vegetables for shorter periods can help preserve the folate content. Using the cooking water from boiled vegetables for soups or sauces can also help retain some of the lost nutrients. Chopping vegetables, interestingly, may increase bioavailability by breaking down the cell walls. For maximum folate retention, consider consuming raw vegetables and fruits, such as spinach in a salad or avocado slices.
Who Needs to Pay Special Attention to Folic Acid Intake?
While everyone benefits from an adequate intake of folate/folic acid, certain populations have a heightened need.
- Pregnant or Planning Pregnancy: Folic acid is critical for preventing neural tube defects in infants and should be taken as a daily supplement (400 mcg) before and during early pregnancy.
- Individuals with Certain Health Conditions: Some conditions, like inflammatory bowel disease (IBD) or celiac disease, can interfere with nutrient absorption, making it harder to get enough folate.
- People Taking Certain Medications: Some medications, such as those for seizures, can interact with folate and may require higher intake.
- Individuals with Poor Diet: Those with a limited diet might not get enough folate from food alone and could benefit from supplementation.
Conclusion
Folic acid and folate are both crucial forms of vitamin B9 that play a vital role in human health. By combining a diet rich in naturally occurring folate from vegetables, legumes, and fruits with the reliable boost from fortified grain products, you can easily meet your daily needs. Pregnant women, or those planning to become pregnant, should pay particular attention to their intake and speak with a healthcare provider about appropriate supplementation to prevent serious birth defects. Making a conscious effort to consume a variety of these folate-rich foods is a simple yet effective strategy for maintaining good health.
Read More
For additional information on recommended daily allowances and the science behind folate and folic acid, consult the Health Professional Fact Sheet from the National Institutes of Health.