Spider veins have something to do with the Paratyroid gland.
Also bile is necessary to absorb the fats you consume and these vitaminks K, Calcium need fat to be absorbed. So when then bile flow is bad you get these spider veins as you get vitamink k and calcium deficiency cause you cannot absorb it. Bile also kills fungus and parasytes, so an overgrowth can ocurr when bile is not present cause of liver and gallblader stones.
Spider veins also indicate acidosis, and candida feed on acid forming foods like bread and sugar.