Silicon Dioxide
Anti-caking agent. In a 50-ingredient powder matrix, ingredients with different particle densities, hygroscopic profiles, and aromatic fractions interact in ways that cause clumping over the pouch lifespan. Silicon dioxide at 40mg per serving keeps the powder free-flowing through to the last scoop. Permitted UK food additive (E551), inert, no health claims.
Mechanism
Amorphous silicon dioxide is a porous, micron-scale powder that adsorbs surface moisture and physically separates particles in a powder blend. In a 50-ingredient formula where some components are oily (MCT, algal DHA), some hygroscopic (electrolytes), and some particulate (matcha stone-milled to ~10 microns), the powder will eventually clump without an anti-caking agent.
Silicon dioxide is one of the most-studied food excipients and has GRAS status in the US, full Ph.Eur. monograph status in Europe, and authorised E-number designation (E551) in the UK. EFSA's most recent re-evaluation (2018) confirmed the safety profile at the levels used in food. The 40mg dose here is far below any concentration where studies have shown effects on absorption of co-ingested compounds - this is a functional, not a therapeutic, ingredient.
Key Benefits
- Anti-caking agent - keeps the powder free-flowing
- Permitted UK food additive (E551)
- Pharmacopoeial: Ph.Eur. monograph, US GRAS
- Vegan, gluten-free
- No health claims, no health concerns at the dose used
Silicon Dioxide
40mgAmorphous SiO2 - food grade, Ph.Eur., permitted excipient (E551)
N/A - functional excipient. Not consumed for therapeutic effect.