TDS is directly related to the purity of water and the quality of water purification systems and affects everything that consumes, lives in, or uses water, whether organic or inorganic, whether for better or for worse.
Both you and your babies may be happier. Chocolate is a stress reliever. It boosts and improves a pregnant woman's mood. Researchers point out that pregnant women under a lot of stress can give birth to livelier and happier babies if they often eat chocolate. Chocolate contains essential antioxidants. Chocolates have flavonoids which contain potent antioxidants that improve immunity.
While there are many foods that are safe when you're not pregnant but unsafe when you are, protein bars -- at least generally speaking -- aren't among them and should be okay to eat when pregnant. During pregnancy, you need protein -- just as you do when you're not pregnant -- to serve several purposes.