Soy Free

Why People Avoid Soy in Health Products

Soy allergy is one of the eight most common food allergies and can cause reactions ranging from mild digestive discomfort to severe anaphylaxis. Beyond allergy, many people choose to avoid soy for other reasons. Soy contains phytoestrogens — plant compounds that can weakly mimic oestrogen in the body — which leads some people with hormone-sensitive conditions or those on thyroid medication to limit their intake. Soy is also one of the most heavily genetically modified crops globally, which is a concern for those seeking non-GMO products.

Hidden Soy in Supplements

Soy is a common filler, emulsifier and coating agent in supplement manufacturing. Soy lecithin is particularly widespread and appears in softgel capsules, tablets and many protein powders. People with soy allergies or sensitivities need to check not just the active ingredients but also the excipients and capsule materials. Products in this collection have been selected specifically because they do not contain soy or soy-derived ingredients in any form.

Common Questions

Soy lecithin is derived from soy but contains very little soy protein, which is the component responsible for allergic reactions. Most people with mild soy sensitivity tolerate soy lecithin without issue. However, people with severe soy allergies or anaphylactic reactions to soy should avoid soy lecithin and choose products verified as completely soy free. When in doubt, consult an allergist.

For most healthy adults, moderate soy consumption does not cause clinically significant hormonal effects. The phytoestrogen concern is most relevant for people with oestrogen-sensitive conditions such as certain breast cancers, or for those taking thyroid medication, as soy can interfere with thyroxine absorption. If you have a hormone-sensitive condition, discuss soy intake with your GP or specialist.