Evidence supporting the use of: Flax
For the body system: Breasts

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Table of Contents

Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Flax (Linum usitatissimum), commonly consumed as flaxseed, has been studied for its potential beneficial effects on breast health, particularly in relation to breast cancer risk. Flaxseed is rich in lignans, which are phytoestrogens—plant-derived compounds with estrogen-like activity. These compounds may exert both estrogenic and anti-estrogenic effects in the body, depending on hormonal context. Several clinical and epidemiological studies have investigated the effects of flaxseed and its lignans on breast tissue, with a focus on hormone-sensitive conditions such as breast cancer.

Research has shown that flaxseed supplementation can reduce the proliferation of breast tissue cells, modulate estrogen metabolism, and may be associated with a reduced risk of breast cancer, especially in postmenopausal women. A few small clinical trials have found that flaxseed supplementation can decrease tumor cell proliferation markers in women with newly diagnosed breast cancer. However, the majority of evidence comes from animal studies, observational research, and short-term human studies. Systematic reviews suggest a potential protective effect, but also emphasize the need for larger, long-term trials to confirm efficacy and clarify the impact on different populations.

In summary, there is scientific rationale and some supporting evidence for the use of flaxseed in supporting breast health, particularly regarding estrogen-related breast conditions. However, while the evidence is promising, it is not yet definitive; thus, the evidence rating is moderate.

More about Flax
More about Breasts

Products containing Flax

We currently have no products on Vitabase that contain this ingredient.