I am building X because I like the challenge and not because I know its needed

It has been about 2 weeks now since I first came across a problem. Namely, I needed to buy supplements based on doctor's recommendations, and I got lost browsing hundreds of supplements trying to compare them to each other. Somehow this lead me to wanting to build a supplement store that allows to compare supplements based on their active ingredients rather than marketing materials.

So... two weeks in, something that had to be an overnight MVP, has grown into me studying chemical compounds and building a database of every nutrient, enzyme, etc. I do genuinely enjoy the process a lot, and I already have a somewhat working product. However, I am increasingly questioning my decision making going down this rabbit hole.

The questions I ask myself are...

* Is this even a solvable problem? [as I've learned along the way, there are near infinite amount of variations how the same ingredient can be described, and often normalization happens with limited amount of information, making a great deal of assumptions]

* If this even worth solving? [are there people who care that much about getting _the best_ supplement?]

There is no ask. I just took a break from writing test cases and paused to reflect on where I am in this journey, but... Would love for someone to share perspective/suggestions if you have one.