best vitamin d gummies for adults - so confused by all the options tbh

It's 11pm and I just took what I think was the right dose of my vitamin d gummies, sitting here hoping they actually do something by morning lol. I've been trying to find the best vitamin d gummies for adults for like three weeks now and every time I think I've figured it out, I end up more lost than before. I'm in New York so I barely see the sun half the year and my doctor told me my levels were low, which is why I even started looking into this.

The biggest thing tripping me up is the supplement facts panel on the back of every bottle. Some say one gummy is a serving, some say two, and the IU versus mcg thing is genuinely making my head spin. I grabbed one bottle off the shelf at a drugstore near me and only realized after I got home that I was basically taking half the dose I thought I was becuase the serving size was two gummies not one. Like why isn't that more obvious on the front label?

I kept googling best vitamin d gummies for adults and every list says something different — some push really high doses, some say stick to 1000 IU, some mention D3 vs D2 like I'm supposed to already know what that means. Has anyone actually figured out what to look for on the label without needing a nutrition degree? Would love to hear what worked for regular people, not just whatever the top search result is trying to sell me.