Do I need to cut dairy if I have fibroids? What about soy?

Contrary to what you often hear, current evidence does not recommend cutting all dairy if you have fibroids.

Several prospective studies actually suggest that moderate intake of milk, yogurt, or other dairy may be associated with lower risk of developing fibroids or with slower progression. This is attributed in part to calcium, protein, and — when the products are fortified — vitamin D.

Quantity and quality both matter. Choose plain, low-sugar, low-saturated-fat options: partially skimmed milk, plain yogurt, kefir.

Limit dairy desserts, cream, very fatty cheeses, and ultra-processed products loaded with added sugar — nutritionally these sit closer to the ultra-processed foods linked to higher fibroid risk than to plain yogurt.

Soy milk fortified with calcium and vitamin D is an excellent option. This isn't about systematically replacing dairy — it's about variety.

Soy naturally contains isoflavones, mainly genistein and daidzein. These plant compounds have a phytoestrogenic activity that is much weaker than the estrogen your body produces. Depending on hormonal context, they can help modulate estrogen-receptor activity rather than simply stimulate it.

Recent research suggests genistein and daidzein may exert several potentially beneficial effects in the context of fibroids: reducing inflammation, oxidative stress, cell proliferation, and certain growth mechanisms. The results are promising, but human studies remain insufficient to conclude a definite therapeutic effect.

I readily encourage minimally processed soy foods — fortified soy milk, tofu, tempeh, edamame — within a varied diet. They are excellent sources of plant protein and particularly interesting for women with fibroids.

Distinguish whole-soy foods from ultra-processed products containing isolated soy protein, added sugar, and additives: they are not the same food.

If you have lactose intolerance, milk-protein or soy allergy, or a specific medical recommendation, adjust with a healthcare professional. A fortified plant milk can effectively replace cow's milk in that case.

If you tolerate dairy well, there is no reason to eliminate it. Regularly including soy milk or other soy foods is one useful nutritional strategy among other supportive habits. What matters most is overall diet quality: plenty of vegetables, fruit, legumes, whole grains, quality protein, adequate vitamin D, a healthy weight, and regular physical activity.