8. Larch

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Larch comes from trees that bear the same name and grow mostly in northern latitudes. Larch is available as a supplement and has been shown to reduce your vulnerability to colds by up to 23 percent. For people who get a lot of colds, larch could help reduce that number by helping your immune system fight off the many strains of cold viruses that are passed around from person to person every year. Just be sure that any larch supplements you buy contain the ingredient “larch resist-aid.”