evidence: The worst foods for glyphosate contamination appear to be oatmeal, oat-based breakfast cereals and granola bars, which is quite depressing if you’re used to thinking of oats as a healthy food. [...] - Glyphosate was found in 43 of the 45 samples of conventionally grown oat-based products. Almost three quarters of these samples had glyphosate levels above what is considered a safe level. - Glyphosate was found in 5 of the 16 samples of organically grown oat products, but this was at levels within what is considered the safe range.