Hulled vs. Unhulled: Why the Hull Triples the Calcium
Standard tahini from roasted hulled seeds (FDC 169428) has 141mg calcium per 100g. Tahini from unhulled (whole) seeds has approximately 420mg calcium per 100g — a 3x increase. Raw tahini from whole seeds can reach 960mg per 100g. The difference comes entirely from the sesame seed hull, which concentrates calcium in its outer layer [1].
One tablespoon (15g) of hulled tahini: 21mg calcium (2% DV). Unhulled tahini: 63mg calcium (5% DV). Raw whole-seed tahini: 144mg calcium (11% DV). For calcium-focused tracking, the type of tahini matters more than the amount — switching from hulled to unhulled triples the calcium without changing the serving size [1][2].
Black sesame tahini has the highest calcium: approximately 975mg per 100g — comparable to Parmesan cheese (1,184mg) and far exceeding milk (113mg per 100g). One tablespoon of black sesame tahini delivers 146mg calcium (11% DV) — as much as half a glass of milk from a single tablespoon of seed paste [3].
Iron Content: How Tahini Rivals Red Meat per Calorie
Hulled tahini delivers 8.95mg iron per 100g (50% DV) — and unhulled/raw versions reach 14.6mg (81% DV). For context, beef sirloin has ~2.2mg per 100g and beef liver ~6.5mg. Per calorie: tahini provides 1.5mg iron per 100 kcal vs beef sirloin's ~1.1mg per 100 kcal. Tahini is more iron-dense per calorie than most meats [1].
One tablespoon of hulled tahini: 1.34mg iron (7% DV). Two tablespoons in hummus: 2.69mg iron (15% DV). This is non-heme iron — pairing with lemon juice (common in tahini sauce) provides vitamin C that enhances absorption. A tahini-lemon dressing combines the two nutrients naturally [1].
Among seed and nut butters, tahini leads on iron by a significant margin. Peanut butter has 1.74mg, almond butter 3.49mg, cashew butter 5.07mg. Even cashew butter's iron is only 57% of tahini's. For iron-focused logging, tahini is the most efficient spread choice [1][2].
Selenium and Phosphorus: Tahini's Overlooked Minerals
Selenium: 34.4mcg per 100g (63% DV) — dramatically higher than any other nut or seed butter. Peanut butter has 5.6mcg, almond butter 1.2mcg, cashew butter 8.3mcg. Two tablespoons of tahini provide 10.3mcg selenium (19% DV) — a meaningful contribution from a condiment [1].
Phosphorus: 732mg per 100g (59% DV) — the highest among all nut and seed butters. Almond butter has 508mg, cashew butter 477mg, peanut butter 335mg. The high phosphorus comes from sesame seeds' exceptionally mineral-dense kernel. Two tablespoons deliver 220mg phosphorus (18% DV) [1].
Thiamine: 1.22mg per 100g (102% DV) — tahini exceeds the entire daily thiamine requirement per 100g. One tablespoon provides 0.18mg (15% DV). Only macadamia nuts (1.195mg) rival tahini's thiamine among nut/seed products, and tahini slightly edges them out [1][3].
Tahini in Hummus: What 3 Tablespoons Contribute
Standard hummus recipe: 1 can chickpeas (400g drained, ~656 kcal, 36g protein) + 3 tablespoons tahini (45g, ~268 kcal, 7.7g protein) + 2 tbsp olive oil (27g, 239 kcal) + lemon juice + garlic. Total: approximately 1,175 kcal and 46g protein for the entire batch [1].
The tahini contributes 23% of hummus calories and 17% of the protein — a significant portion. It also adds the majority of the iron: 4.0mg from tahini vs ~4.2mg from chickpeas and ~0.2mg from olive oil. Per 2-tablespoon serving of hummus (~28g): approximately 70 kcal, 2.7g protein, and 0.75mg iron [1].
Tahini-heavy hummus (doubling to 6 tbsp / 90g tahini): total becomes 1,443 kcal — 23% more. The texture becomes creamier and the iron contribution from tahini doubles to 8.1mg. For those who make hummus at home, adjusting the tahini ratio is the fastest way to change both the flavor profile and mineral density [2].
Tahini vs. Peanut Butter: Similar Calories, Different Minerals
Calories are nearly identical: tahini 595 kcal vs peanut butter 588 kcal per 100g. Protein: tahini 17.0g vs PB 25.1g — peanut butter wins by 48%. Fat: tahini 53.8g vs PB 50.4g — similar. Carbs: tahini 21.2g vs PB 19.6g — close. On macros, peanut butter has the protein edge [1].
On minerals, tahini dominates: iron 8.95mg vs PB 1.74mg (5x more), selenium 34.4mcg vs 5.6mcg (6x more), phosphorus 732mg vs 335mg (2.2x more), zinc 4.62mg vs 2.91mg (59% more). The only mineral where PB leads is magnesium: 154mg vs tahini's 95mg (hulled) — though unhulled tahini's 350mg reverses this [1].
Sugar: tahini 0.49g vs PB 9.22g per 100g — peanut butter has 19x more sugar. Natural unsalted PB reduces this to 4.5g, but tahini remains dramatically lower in sugar. For those tracking sugar intake, tahini is the clear winner among calorie-equivalent spreads [1][3].
Tahini Types: Hulled vs. Unhulled vs. Raw vs. Black Sesame (per 100g)
| Nutrient | Hulled (Roasted) | Unhulled (Whole) | Raw (Whole Seed) | Black Sesame | Peanut Butter |
|---|---|---|---|---|---|
| Calories (kcal) | 595 | 607 | 570 | 603 | 588 |
| Calcium (mg) | 141 | 420 | 960 | 975 | 43 |
| Iron (mg) | 8.95 | 10.5 | 14.6 | 11.8 | 1.74 |
| Selenium (mcg) | 34.4 | 35.0 | 34.4 | 36.0 | 5.6 |
| Fiber (g) | 5.5 | 8.5 | 6.0 | 7.5 | 6.4 |
| Sugar (g) | 0.49 | 0.4 | 0.5 | 0.4 | 9.22 |
Practical Tips for Tahini
- 1
Unhulled tahini has 3x the calcium of hulled (420mg vs 141mg per 100g). Check the label — the word 'whole' or 'unhulled' makes a 280mg difference [1].
- 2
8.95mg iron per 100g (50% DV) from hulled, up to 14.6mg from raw whole seed. Tahini has 5x more iron than peanut butter per 100g [1].
- 3
34.4mcg selenium per 100g (63% DV) — 6x more than peanut butter. No other nut/seed butter comes close to tahini's selenium [1].
- 4
Only 0.49g sugar per 100g — tahini has 19x less sugar than regular peanut butter (9.22g). One of the lowest-sugar calorie-dense spreads available [1].
- 5
1.22mg thiamine per 100g (102% DV) — tahini exceeds the full daily thiamine requirement. One tablespoon covers 15% DV [1].
Frequently Asked Questions — Tahini
How many calories are in a tablespoon of tahini?
Is tahini high in calcium?
Why does tahini have so much iron?
Is tahini healthier than peanut butter?
What is the difference between hulled and unhulled tahini?
How much tahini is in hummus?
Important Notice
Nutritional values are based on USDA FoodData Central data for seeds, sesame butter, tahini, from roasted and toasted kernels (FDC 169428). Raw tahini values are from FDC 170150 (sesame butter, tahini, from raw and stone ground kernels). Unhulled, light, and black sesame variants are estimated from published analyses and manufacturer data. Actual values vary by brand and seed processing. This tool is for informational and nutrition journaling purposes only — it is not a substitute for guidance from a qualified nutrition professional.
About the Author
Certified fitness professional and nutrition researcher with over 10 years of experience in the fitness and wellness industry. Founder of Food Nutrify, dedicated to making accurate, science-backed nutrition data accessible to everyone through free, easy-to-use calculators.
References & Sources
- [1] USDA FoodData Central (2024). Seeds, sesame butter, tahini, from roasted and toasted kernels (FDC 169428) and from raw and stone ground kernels (FDC 170150). U.S. Department of Agriculture, Agricultural Research Service.
- [2] Various Authors (2024). The nutritional value and health properties of tahini and tahini-based products. ResearchGate — Journal of Food Science.
- [3] Various Authors (2022). Tahini: nutritional composition, health effects, and processing. Iranian Journal of Nutrition Sciences & Food Technology.