My finger nails are yellow/transparent, not white. or a mix of transparent and some white. why is this?

Yellow nails: Smoker? that is a frequent cause of yellow nails as is coffee. Vit B12 or zinc deficiency can also stain nails yellow. Pathologically fungus is the most common culprit or familial yellow nail syndrome. f/u/ w/ dermatology . https://www.nailsmag.com/article/93812/the-stories-nails-tell https://www.webmd.com/skin-problems-and-treatments/ss/slideshow-nails-and-health