Sesame at the Edge of the Garden
By midsummer, sesame is blooming in a corner of the garden, covered in small white bell-shaped flowers. When the petals drop, rows of slender pods take their place, each one packed with tiny seeds. In fall, you cut the stalks, let them dry, and turn them upside down. Give them a shake and the seeds pour out. A handful adds a nutty aroma to namul (seasoned vegetable side dishes). Grind it into kkaesogeum, toasted sesame crushed with a little salt, and it goes with just about any meal.
We use sesame so often that it's easy to forget people once saw it as more than a seasoning. They treasured it as a nourishing grain and as a medicine. In homes that pressed their own sesame and perilla oil and wasted none of the fragrant leftovers, a handful of sesame belonged in both the kitchen and the medicine cabinet. In this column, we'll look at how traditional medicine viewed sesame and where that view overlaps with modern nutrition science.
What the Old Medical Texts Say
In traditional herbal medicine, sesame went by the name homa (胡麻), which covered both black and white sesame. The Shennong Bencao Jing, the ancient Chinese "Divine Farmer's Classic of Materia Medica," described it as sweet in taste and neutral in nature. It placed sesame in the "superior" class (上品), the highest of its three tiers of herbs. A neutral nature, one that leans neither hot nor cold, suggests people saw sesame as a gentle, nourishing food they could eat for years without strain on the body.
As for its uses, old records say sesame strengthens the five major organs, boosts energy, and builds up flesh and marrow. Those descriptions don't cast sesame as a fast-acting remedy for any one problem. They present it as a food that supports the whole body slowly, over time. That's why people turned to it for so long when they felt weak or run down. Black sesame, called heugimja in Korean, gets special attention: many records say it strengthens the liver and kidneys and keeps hair dark. In other words, black sesame was prized as a tonic even more than white.
One important note, though. All of this tells us how the old medical texts saw sesame. Phrases like "darkens the hair" or "fills the marrow" reflect how people understood the body back then. Please don't read them as promises of what sesame can treat today.
What Modern Nutrition Science Says
Modern nutrition science is most interested in sesame's lignans, compounds such as sesamin and sesamol that are known for strong antioxidant activity. Where the old texts talked about nourishment and building strength, today's science talks about antioxidants.
Meta-analyses of human studies have reported that eating sesame tends to lower total cholesterol, LDL cholesterol, and systolic blood pressure. Results vary from study to study, though, so the balanced view is to treat sesame as a helpful part of your diet rather than a fix for any particular condition. One study may show a clear benefit while another finds little effect, so a little caution about health claims serves you well. That caution fits the old records, too, which treated sesame less as a medicine and more as a grain to eat day after day. "Strengthening" and "antioxidant" come from very different eras, but both see sesame the same way: as a food that supports the body steadily over time, not as a quick cure.
From Garden to Table
Toast your harvested sesame once and its aroma really comes alive. Sprinkle it as kkaesogeum over namul or soup, or grind it fine and stir it into soy milk or juk (rice porridge) for a rich, nutty, nourishing dish. Black sesame is easy to work into everyday meals: mix a spoonful into your rice, or use it as a coating for tteok (rice cakes).
Keep in mind that sesame seeds are small but high in oil, so the calories add up. Instead of eating a lot at once because it's "good for you," add a spoonful or two to your meals every day. That's much closer to how people have long eaten it as a grain. Toasted sesame goes rancid over time and loses its aroma, so toast small batches and enjoy them fresh.
A handful of tiny seeds adds nutty flavor to the table, and the old medical texts prized it as a nourishing food. If you harvest sesame from your garden this summer, try adding a spoonful to your meals.
