<<Disclaimer: Verify this information before applying it to your situation.>> Hi All, thank you all so very much for your input, I don't know how I would ever make it without you folks on this list; I work a lot in my garden and around my horses, my nails have ridges, peel and split even when cut real short- awful and painful. I get ridges after a gluten accident and stress, each ridge is an accident or stress; I don't take my vitamins or calcium regularly, I do get Vit B12 injections however and I eat very balanced with lots of protein; from the responses below I will try taking biotin and use nail hardener in the interim; and I will use vinegar after washing my hands; I can't eat jello anymore since I overate it when was just diagnosed with Celiac 4 years ago; most of the 39 responses I received so far say that Knox jello one serving per day has helped them to strengthen their fingernails; most also said that their nails grew stronger 3-4 years after going gf most also said that Calcium and Vit D helps 1 person uses Freeda's Quntabs - M and Freeda's Vit E 400 with success about 5 stated that cold and dry winter weather worsens the condition several are using nail hardeners like Nailtek, Nailtique and Hard as Nails, one person stated that folic acid helped one person had an interesting solution found in a gardeners magazine: garden work and lots of washing hands makes hands "basic" as in the opposite of acidic, she uses a bit of vinegar after washing her hands to change the pH and had good success with it; thanks again and have you all a great Valentine's Day Butze