Are these items kosher for passover

Question

1) vitamins made from all different mushrooms with magnesium stearate,hydroxpropyl methylcellulose(vegetarian capsule). 2)Multi vitamins with Dextrose,cellulose,croscarmellose sodium,stearic acid,silicone citrate. 3)Antioxident with gelatin,silicone dioxide,magnesium stearate,maltodextrin. 4)Tinkyada 100% rice pasta (wheat free) product of canada made with stone ground brown rice, rice bran,and water