Dill

What the trials found

Dill seed has limited evidence for reducing primary menstrual pain in affected women, based on one small randomized trial rather than a well-established supplement benefit.

1 papers
0 of 1 outcomes

Risk, worst reported severity

adverse effects (unspecified)

Protocol

Dose, timing & forms

How much

Current evidence does not establish a dependable dill dose for pain. One randomized trial evaluated dill seed for primary menstrual pain, but a single study cannot define a general dose range or show that the same approach works for other types of pain. 1

When and how long

There is no evidence-based rule for when to take dill for pain. The single clinical trial does not provide enough confirmation to turn its schedule into general advice, especially for everyday culinary dill products. 1

Forms & standardisation

The pain research used dill seed, not fresh dill leaves. That means the result does not automatically extend to dill tea, essential oil, or a supplement that simply lists “dill” without identifying the plant part. 1

Safety events

adverse effects (unspecified)

In context

What this is and how it works

One small randomized trial compared dill seed with mefenamic acid for primary menstrual pain.1
Evidence reviewed here includes 1 paper spanning 1 outcome: primary dysmenorrhea.
Findings apply to dill seed and menstrual pain, not to dill supplements broadly.

Dill is the feathery, fragrant herb you see in pickles, salads, and fish dishes. Supplements can use the plant's seeds rather than its fresh leaves, which matters because research findings from one form do not automatically apply to another.

Human research has not established how dill seed changes pain signals. The available trial measured menstrual pain, not a specific biological pathway, so a neat mechanism story would be guesswork rather than evidence. 1

Bottom line

Dill seed is interesting if menstrual pain is your goal, but the human evidence rests on one small trial. It is not a well-established pain supplement, and people with a dill allergy or unexplained adverse effects should avoid treating it like a casual fix. 1

Frequently asked

Common questions

Does dill help with menstrual cramps?

One small randomized trial suggests dill seed can reduce primary menstrual pain, but one study is not enough to establish dill as a dependable option. ¹

Is culinary dill the same as dill seed supplements?

Not necessarily. The pain trial tested dill seed, so it does not show that fresh dill leaves, dill tea, or dill essential oil produce the same result. ¹

What dose of dill should you take for pain?

Current human evidence does not establish a reliable dose. The available evidence comes from a single trial, so it cannot define a broadly useful self-care regimen. ¹

Sources

1. Comparison of the effect of dill seed and mefenamic acid on the severity of primary dysmenorrhea: A randomized clinical trial (2014) ↑

Generated August 27, 2026

Adverse events and drug interactions

Sources