Complex sentence: However, Marcel Bon, in his 1987 book "The Mushrooms and Toadstools of Britain and North Western Europe", records it as suspect, so it may be worth applying caution, by eating a very small amount initially.
Split into simpler sentences: However, Marcel Bon, in his 1987 book "The Mushrooms and Toadstools of Britain and North Western Europe" records it as suspect. So it may be worth applying caution, by eating a very small amount initially.