White spots sometimes occur after the product has left the plant. The spots do not damage the product or interfere with the taste. There is lactic acid in your products. Although the terms are confusingly similar, the lactic acid does not contain lactose. Lactose, a milk sugar, is a carbohydrate.
Lactic acid is an acidulant that adds tartness and controls acidity.
They are two entirely different substances. The Veggie Slices and Veggy Singles contain 2 mg. of Isoflavones per slice. The Veggie Milk contains 20 mg. It is in its original form as it occurs in nature. It is deodorized to provide a clean, consistent flavor by removing volatile off-flavors.