Evidence-based nutrition, in plain English — every entry sourced from clinical research.

Flaxseed is by far the richest food source of lignans, polyphenols studied for hormone-related and cardiovascular health.

What is Lignans?

Lignans is a Phytoestrogen that plays a critical role in acting as fibre-bound phytoestrogens. While many general diets overlook it, maintaining optimal levels of Lignans is frequently tracked by people working to optimize their Hormone balance.

Top Foods High in Lignans

A data-driven breakdown of the foods with the highest concentration of Lignans per 100 g.

Highest dietary sources of Lignans, per 100 g edible portion
FoodLignans
Flaxseed300 mg
Chia Seeds80 mg
Whole Wheat Bread5 mg
Strawberries1.5 mg

How Lignans Impacts Hormone balance

Research links diets rich in Lignans to changes in Hormone balance. Optimizing intake of these foods can support healthy Hormone balance levels via gut bacteria convert them to enterolignans that weakly modulate oestrogen.

Encyclopedia Insight: For maximum absorption, pair Lignans-rich foods with a healthy gut microbiome and ground (not whole) seeds to optimize bioavailability.

Scientific references & clinical evidence

This guide is built on peer-reviewed research — verify the primary sources below.

  1. Integrative cancer therapies (2014). “Flax and Breast Cancer: A Systematic Review”. PubMed / source ↗
  2. Current hypertension reviews (2024). “Supplementation of Olive Oil and Flaxseed Oil on Blood Pressure and Inflammation in Healthy and At-Risk Adults: A Systematic Literature Review and Meta-Analysis”. PubMed / source ↗

Written by the Nutrition Encyclopedia team · medically reviewed by Dr. Sunaina Tariq, MBBS

Last updated 21 June 2026

Nutrition values are approximations compiled from public food-composition databases (USDA FoodData Central) and are provided for educational purposes only — not medical advice.

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