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Safety of the nanomaterial SAS (silica) in food still uncertain

Gepubliceerd op
22 juli 2014

Source: website RIVM. Uncertainty still remains over the safety of the nanomaterial SAS in food. Food additive E551 consists of ‘synthetic amorphous silica’ (SAS) and is applied as an anti-caking agent. It is present in products such as coffee creamer, soup and sauce powders and seasoning mixes.

Despite new research, definite conclusions cannot be drawn yet regarding health risks. However, RIVM has come up with new insights making the risk assessment more concrete and quantifiable than was possible until now. From this study it appears that health risks are a possibility from SAS being used in food.

Concentration in the liver

In this study RIVM calculated the maximum level of concentration of silica in the human liver for a lifelong intake of food products with SAS. Subsequently, this concentration level was compared to the concentration in the liver of laboratory animals where SAS caused inflammatory effects.

The estimated concentration in the human liver was found to be the same level as that for laboratory animals where effects were found. This suggests that health effects due to SAS in foods are possible.

For more information please go to the website of RIVM.