Description
"Soy" (Glycine max) is a legume cultivated worldwide and valued for its high protein, fiber, and isoflavone content. These naturally occurring compounds contribute to metabolic balance, cardiovascular support, and hormonal modulation. Protein-dense soy products serve as important components of plant-based diets, offering a complete amino acid profile. Common forms include tofu, tempeh, and soy milk. Soy has been part of traditional cuisines for centuries and continues to be an essential part of plant-based nutrition today.
Functions in the Body
Category
Deficiency Symptoms
Soy is not classified as an essential nutrient, meaning it does not have specific deficiency symptoms.
Synergists & Antagonists
Soy is often combined with vitamin D, calcium, magnesium, and boron to support bone strength and hormonal balance. However, excessive intake alongside other phytoestrogens (such as flaxseed, red clover, and dong quai) acts as an antagonist, requiring moderation.
Soy
Warnings
Soy should be avoided by individuals with soy allergies or thyroid conditions, as its goitrogenic properties may interfere with thyroid hormone production. Those taking thyroid medications or hormone replacement therapy should consult a healthcare provider, as soy may reduce the absorption or efficacy of these medications. Excessive soy consumption may disrupt hormonal balance in sensitive individuals.
Food Sources
Soy is widely available as edamame, tofu, soy milk, soy protein, and fermented products like tempeh and miso, offering a rich source of plant-based protein and isoflavones.
Time Frame
Soy can be consumed at any time of day, often with meals, to support balanced nutrition, hormonal health, and energy levels.
Depleted By
Soy is not considered essential and does not deplete naturally in the body.