I believe I may be zinc deficient. I just took a zinc tally taste test, and it tasted like water. I have a long history of skin issues (bad acne, and seborrheic dermatitis) and gut issues, likely small bowl dysbiosis and leaky gut. I also have the white spots on my fingernails that Chris Kresser mentioned are a symptom of zinc/copper imbalance, and our house has copper pipes (we do run the water 3 minutes before drinking though).
I've been taking 50mg/day of chelated zinc (as Zinc Gluconate) for the past 10 days, still no taste on the zinc tally test.
I'm thinking of upping the doseage to see what happens, but I want to take a measured approach because Paul Jaminet suggests on p223 of the Perfect Health Diet that dosage above 40mg/day (= regular multivitamin + PHD dietary intake) is risky.
What is a reasonable dose of zinc?
Are there any things I should look out for, and stop supplementation if they occur?