These two stocks could be rivals in the intense GLP-1 space in the future.Investing into companies involved with new weight loss medications can be overwhelming. There is a lot of competition in the space given the potential for the anti-obesity market to grow to a size of $100 billion or more, as per estimates from Goldman Sachs.The challenge becomes the following: Do you invest in an established healthcare company that is expanding into this new category of glucagon-like peptide-1 (GLP-1) medications, or ...