Tonic water and is used mostly for its flavor. As a result of the lower quinine content, it is less bitter, and is also usually sweetened, often with high-fructose corn syrup or sugar. Some manufacturers also produce diet (or slimline) tonic water, which may contain artificial sweeteners such as aspartame. Traditional-style tonic water with little more than quinine and carbonated water is less common but may be preferred by those who desire the bitter flavor. In the United States, the US Food and Drug Administration (FDA) limits the quinine content in tonic water to 83 ppm (83 mg per liter if calculated
Effects of parasitic worms on the immune system study, Dr. Hartgers "et al." drew a "cautious conclusion" that helminths make humans more susceptible to contracting malaria and experiencing some of its lighter symptoms, while actually protecting them from the worst symptoms. Hartgers reasons that a Th2-skewed immune system resulting from helminth infection would lower the immune system's ability to counter an initial malarial infection. However, it would also prevent a hyperimmune response resulting in severe inflammation, reducing morbidity and pathology. Effects of parasitic worms on the immune system The effects of parasitic worms, or helminths, on the immune system is a recently emerging topic of study among immunologists