Sesame seeds are a nutritional powerhouse of calcium, magnesium, zinc, and iron — but vitamin C is one nutrient they simply do not provide. According to USDA FoodData Central, whole dried sesame seeds contain 0 mg of vitamin C per 100 g, and the same is true for toasted seeds, tahini, and sesame oil. Sprouting seeds can create small amounts of vitamin C, though the increase is modest and highly variable.
This calculator takes any sesame portion you enter — grams, tablespoons, teaspoons, or cups — and works out exactly how much vitamin C it contains, what percentage of your daily target it covers, and how much sesame you would need to eat to reach that target. It even puts the result in perspective against a familiar reference: a medium orange.
Whether you are meal planning, checking a recipe, or testing the claim that sesame has no vitamin C, this tool delivers a quick, honest answer. You can adjust the daily target to your own needs, since the FDA Daily Value is 90 mg while the RDA for adult women is 75 mg, and you can also explore the sprouted sesame estimates.
🌱 Sesame Vitamin C Calculator
Check how much vitamin C a sesame portion provides, how far it goes toward your daily target, and how much sesame it would take to get there.
How to Use This Calculator
Pick the sesame product you are eating or cooking with, enter the portion size (grams, tablespoons, teaspoons, or cups), and set a daily vitamin C target. The calculator uses 90 mg as the default, which is the FDA Daily Value, but you can change it to 75 mg or any value that fits your nutrition plan.
- Choose the product from the dropdown.
- Enter the portion size and select its unit.
- Optionally adjust the daily target.
- Click Calculate to see the vitamin C amount, percentage of target, orange equivalents, and how much sesame would be needed to reach the target.
Vitamin C Values Behind the Numbers
Values used in this calculator are based on USDA FoodData Central entries for sesame, with the sprouted estimate noted as approximate:
| Product | Vitamin C per 100 g |
|---|---|
| Raw sesame seeds | 0 mg |
| Toasted sesame seeds | 0 mg |
| Tahini (sesame paste) | 0 mg |
| Sesame oil | 0 mg |
| Sprouted sesame (estimate) | ~1 mg |
The Math Behind It
The core calculation is simple: vitamin C (mg) = weight in grams × vitamin C per 100 g ÷ 100. Volume units are first converted to grams using typical densities: about 9 g per tablespoon and 144 g per cup for seeds, about 15 g per tablespoon for tahini, and about 14 g per tablespoon for sesame oil.
For products with 0 mg per 100 g, the portion will always contribute 0 mg, so the percentage of target is 0% and the orange equivalent is 0. No realistic portion of that product can meet a vitamin C target.
Worked Example
Suppose you eat 3 tablespoons of sprouted sesame (estimated 1 mg per 100 g) and your target is 90 mg. 3 tablespoons ≈ 27 g. Vitamin C = 27 g × 1 mg/100 g ÷ 100 = 0.27 mg. That covers 0.3% of the target, and you would need about 9,000 g of sprouted sesame to reach 90 mg — clearly not a practical source.
Common Mistakes to Avoid
- Assuming tahini or sesame oil contains vitamin C because it is made from sesame. Like the seeds, these products contain no vitamin C.
- Confusing volume and weight. A cup of tahini weighs more than a cup of raw seeds, so use the product-specific conversions built into the calculator.
- Treating sesame as a vitamin C source. Sesame is valuable for minerals and healthy fats, but vitamin C should come from other foods.
Frequently Asked Questions
Does sesame contain vitamin C? According to USDA data, sesame seeds, tahini, and sesame oil contain no vitamin C. Sprouting can create trace amounts, but not enough to be nutritionally meaningful.
What is a good source of vitamin C? Citrus fruits, kiwifruit, strawberries, bell peppers, broccoli, and tomatoes are all well-known sources. The NIH has a detailed fact sheet with food lists and intake recommendations.
Additional Resources
USDA FoodData Central — search for sesame, tahini, and sesame oil nutrition profiles.
NIH Vitamin C Fact Sheet — official intake recommendations and food sources.