Like...why would anyone believe a company whose interest is enmeshed with their claims?? A company isn't a person with morals. It's a Machiavellian machine with the sole purpose of maximizing profits. They will never ever intentionally make a claim that hurts their profits. It would make absolutely no sense for a company to reduce demand of its product. That would be soooooo counterintuitive. If you sold lemonade, would you publish a study that showed that lemonade harms people? If yes, then your company would stop selling lemonade and disband while every other lemonade seller would flood the market with the benefits of consuming lemonade.