Til seeds are nutrient-dense and may support bone health, digestion, and heart function

Til seeds (also called sesame seeds) are small, flat seeds from the sesame plant that contain protein, healthy fats, minerals, and compounds that act as antioxidants. A 100-gram serving of unhulled til seeds contains roughly 9 grams of protein, 50 grams of fat (mostly unsaturated), 12 grams of fiber, and significant amounts of calcium, magnesium, iron, and zinc. The seeds also hold lignans and sesamin—plant compounds that may reduce inflammation and protect cells from oxidative damage.

The evidence for til seeds comes from a mix of animal studies, small human trials, and observational data. Some effects are well-established (the mineral content is real and measurable), while others remain emerging or require larger human studies to confirm. This guide explains what the research currently shows, what remains uncertain, and how til seeds fit into a typical diet.

Key Takeaways

  • Til seeds are high in calcium, magnesium, and zinc—minerals your bones, muscles, and immune system need—and unhulled seeds contain more of these minerals than hulled varieties.
  • The fat in til seeds is mostly unsaturated, and some research suggests sesamin may help lower cholesterol and blood pressure, though human trials remain small.
  • Til seeds contain fiber and compounds that may support healthy digestion and reduce inflammation in the gut, but individual response varies.
  • Til seeds are calorie-dense (about 565 calories per 100 grams), so portion size matters if you are watching total intake.
  • Whole seeds pass through the digestive system largely undigested; grinding or soaking them may increase nutrient absorption.

Mineral content and bone health

Til seeds are one of the richest plant sources of bioavailable calcium—calcium your body can actually absorb. A 100-gram serving of unhulled til seeds provides roughly 975 milligrams of calcium, compared to 100 milligrams in hulled seeds (the hull contains most of the mineral). For context, the recommended daily intake for adults is 1,000 to 1,200 milligrams, so a small handful of unhulled seeds can contribute meaningfully to your total.

Til seeds also contain magnesium (about 350 milligrams per 100 grams) and zinc (about 8 milligrams per 100 grams). These minerals work together: magnesium helps your body absorb and use calcium, and zinc supports bone formation and immune function. Observational studies in populations that consume til seeds regularly show associations with higher bone mineral density, though these studies cannot prove til seeds alone caused the effect—diet, exercise, and genetics all play a role.

The practical takeaway is that til seeds can be part of a bone-supporting diet, especially for people who do not consume dairy or who want plant-based mineral sources. Unhulled seeds are more mineral-dense than hulled, but hulled seeds are easier to digest for some people and taste milder.

Heart health and cholesterol

Til seeds contain roughly 50 grams of fat per 100 grams, but most of that fat is polyunsaturated (about 42 percent of total fat) and monounsaturated (about 36 percent), with only about 14 percent saturated fat. This fat profile is similar to nuts and olive oil, which observational studies link to lower heart disease risk.

The compound sesamin, found in til seeds, has been studied in animal models and small human trials for its effect on cholesterol and blood pressure. In a 2013 trial published in Nutrition & Metabolism, people who consumed sesame seed powder for 60 days showed modest reductions in LDL cholesterol and blood pressure compared to a control group. However, the trial involved only 34 people, and larger, longer human studies are needed to confirm whether sesamin produces meaningful effects in diverse populations.

Til seeds also contain phytosterols—plant compounds that can block cholesterol absorption in the gut. The amount in til seeds is smaller than in foods specifically fortified with phytosterols, but it contributes to the overall effect. If you have high cholesterol or heart disease risk, til seeds may be a useful addition to a heart-healthy diet, but they are not a replacement for medication or other proven interventions.

Digestion and gut health

A 100-gram serving of til seeds contains about 12 grams of fiber, most of it insoluble fiber that adds bulk to stool and supports regular bowel movement. Insoluble fiber also feeds beneficial bacteria in your colon, which produce short-chain fatty acids that reduce inflammation in the gut lining.

Til seeds also contain lignans, a class of polyphenols that act as prebiotics—they feed beneficial bacteria and may reduce the growth of harmful species. Animal studies show that sesame lignans increase the diversity of gut bacteria and reduce markers of intestinal inflammation. Human studies are limited, but observational data from populations with high sesame consumption suggests associations with lower rates of inflammatory bowel conditions.

One practical consideration: whole til seeds pass through the digestive system largely intact if you do not chew them thoroughly. Grinding seeds into a powder, soaking them overnight, or using tahini (sesame seed butter) may increase the amount of fiber and nutrients your body actually absorbs. If you are new to eating til seeds, start with a small amount (1 to 2 tablespoons) and increase gradually to allow your gut to adjust to the added fiber.

Antioxidant compounds and inflammation

Til seeds contain sesamin and sesamol, compounds that neutralize free radicals—unstable molecules that damage cells and contribute to aging and disease. In laboratory studies, these compounds show strong antioxidant activity, and animal models of inflammation show that sesame compounds reduce markers of systemic inflammation.

However, the leap from test-tube and animal data to human benefit is not automatic. A 2019 review in Nutrients concluded that while sesame compounds show promise for reducing inflammation, most human trials have been small and short-term. The evidence is strongest for people with existing inflammatory conditions (like rheumatoid arthritis or metabolic syndrome), where consuming sesame seeds or sesame oil has shown modest improvements in inflammatory markers. For people without diagnosed inflammation, the anti-inflammatory benefit is harder to measure and may be modest.

Nutrient absorption and preparation methods

The hull (outer shell) of til seeds contains most of the minerals and fiber, but it also contains phytic acid—a compound that binds minerals and can reduce their absorption. Unhulled seeds are more nutrient-dense but harder to digest; hulled seeds are easier on the digestive system but contain fewer minerals.

Several preparation methods can increase nutrient availability. Soaking seeds in water for 4 to 8 hours reduces phytic acid and activates enzymes that improve nutrient absorption. Grinding seeds into a powder or butter (tahini) breaks down the hull and makes minerals and fats more accessible to your digestive system. Roasting seeds lightly can improve flavor and digestibility, though high heat may reduce some heat-sensitive compounds like sesamin.

If you have a history of kidney stones or take medications that interact with minerals (like certain antibiotics or bisphosphonates for bone health), talk with your doctor or a registered dietitian before significantly increasing til seed intake, because the high mineral content could affect absorption of those medications.

Portion size and calorie content

Til seeds are calorie-dense: 100 grams contains about 565 calories. A typical serving—1 tablespoon of whole seeds or 2 tablespoons of tahini—is roughly 15 to 16 grams and provides about 85 to 95 calories. This is similar to nuts and other seeds, so if you are tracking total calorie intake, til seeds should be counted as a fat source rather than a "free" food.

The benefit is that a small amount goes a long way: 1 to 2 tablespoons of til seeds or tahini can deliver meaningful amounts of calcium, magnesium, protein, and fiber without requiring large portions. For most people, 1 to 3 tablespoons of til seeds per day is a reasonable amount that provides nutritional benefit without excess calories.

Frequently Asked Questions

Do I need to soak til seeds before eating them?

Soaking is not required, but it can help. Soaking for 4 to 8 hours reduces phytic acid and may improve mineral absorption. If you do not soak, grinding or chewing seeds thoroughly achieves a similar effect. Whole seeds that pass through undigested provide less benefit.

Are hulled or unhulled til seeds better?

Unhulled seeds contain more calcium, magnesium, and fiber, but the hull can be harder to digest for some people. Hulled seeds are easier on the stomach and taste milder. If digestion is not an issue, unhulled seeds are more nutrient-dense. You can also mix them or choose based on how your body responds.

Can til seeds help lower cholesterol?

Small human trials suggest sesamin (a compound in til seeds) may modestly reduce cholesterol and blood pressure, but the evidence is not strong enough to say til seeds alone will lower your cholesterol. They may be a useful part of a heart-healthy diet that includes other proven foods and habits, but they are not a replacement for medication if your doctor prescribes it.

Will eating til seeds cause kidney stones?

Til seeds are high in oxalates, compounds that can contribute to kidney stone formation in people with a history of stones. If you have had kidney stones or have a family history, talk with your doctor before eating large amounts of til seeds regularly. For people without this history, normal portions are safe.

How much til seed should I eat per day?

1 to 3 tablespoons of whole seeds or tahini per day is a typical amount that provides nutritional benefit without excess calories. Start with 1 tablespoon and increase gradually if you are new to eating them, especially if you have a sensitive digestive system.