Let's talk about the impact of funding bias (1, 2, 3) on scientific research and how to deal with it.When an industry invests heavily into the safety-research of its own product, there often exists a conflict of interest (COI). This means that a company is not particularly interested in reporting that their product is unhealthy or even dangerous to consumers because that would negatively affect profits. Thus, studies can be designed in a biased way, or results may be reported one-sidedly. An example is the tobacco industry, which since the 1960s invested massive amounts of money into research that surprisingly found that cigarettes are actually safe. Well guess what: they are not.There is a spot in every paper specifically reserved for mentioning the source of funding as well as possible conflicts of interest. However, despite the industry funding more than 60% of all research, only state funding is required to appear in this section. For all private funding this is optional. To my knowledge there is no system in place to ensure the completeness or correctness of the COI section.Please imagine the following scenario: you are reading a study on tobacco and cancer, which does not mention any conflict of interest, or it's sources of funding. You don't know if this study may have been ordered by Marlborough. In fact, any study you are reading may have been sponsored by the devil personally as far as you can see.This causes distrust. It is a risk to the reliability and efficiency of science. It takes away the safeguard that scientific research has given to us, by promising that only unbiased truth is being reported.How do we solve this?Sources:1) 
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