The science
Hundreds of studies, two that matter for the gut.
For centuries, black seed (scientific name: Nigella sativa) has been taken for digestive comfort. The clinical record now runs hundreds of studies deep — with two landmark trials directly relevant to the gut.
A 2023 systematic review of human trials
Synthesized the evidence for Nigella sativa across gastrointestinal health. Across multiple controlled human studies, black seed supplementation was associated with reduced inflammatory markers (CRP, IL-6, TNF-α), supported normal gastric mucin secretion, and supported a balanced gut environment at human doses of 1–3 g/day across 4–12 weeks.1
A 2020 randomized, double-blind, placebo-controlled trial (n=51)
Studied 2 g of Nigella sativa per day over four weeks in adults with functional digestive discomfort. The black seed group showed significantly greater improvements in dyspepsia symptom severity and quality-of-life scores versus the placebo group (p=0.01).2
The compound being studied is thymoquinone (TQ) — the bioactive that makes Nigella sativa different from every other seed oil in your pantry. habb publishes its TQ percentage on every batch.
Why one ingredient, not twelve
Most bottles never tell you what’s actually in them.
We use the conservative lab method, not the one that inflates the number. The card in the box shows you which test we ran. The full method comparison lives on how it’s made.
Every habb batch publishes three data points on the batch card:
Lab-verified by an independent third-party lab. We state the method because the method is the whole argument.
Linoleic 57–61%. Oleic 20–21%. Palmitic 12–13%. That ratio is what real Nigella sativa oil looks like. Cheap seed oils are the most-faked oil on the morning shelf, so we show the fatty-acid profile — if a brand won’t, that’s the answer.
For oxidation and contamination safety.
Sourcing: Ethiopian seeds, cold-pressed in California, one ingredient. The full how-it’s-made math lives on how it’s made.
Cold-pressed in California from single-origin Ethiopian seeds.
How to use
One teaspoon, every morning, before everything else.
Every bottle of habb ships with a ceramic spoon sized to the daily serving — so you’re not measuring, you’re just pouring. Take it straight from the spoon, stir it into warm water with honey, or add it to a morning smoothie. The oil is peppery and a little bitter; most women settle into their favorite vehicle after the first week.
What real customers are saying
Questions