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If it's 'composite' then it most likely contains some binding material apart from wood, which will still get into your food.

It appears that those cutting boards are made of Richlite [1], which seems to be fused layers of paper. Apparently some form of phenolic resin is used during the creation process, but only little of that ends up in the actual board. Not sure about any adverse health effects there.

[1] https://www.richlite.com/

Resin-bound wooden tableware is banned in the UK: https://www.theguardian.com/business/2023/oct/21/warnings-ov...