- Echinacea – a prairie coneflower, has chemicals in the leaves and roots are thought to increase white blood cell production and antiviral protein messengers. It is best used in on-and-off cycles to help prevent getting sick, and in immediate use when you already sick.
- Ginseng – Its root has shown that it can increase physical stamina and deter colds. Best used as a pre-emptive boost to the immune system, it should also be used in on-and-off cycles and no longer than 3 continuous months without consulting a health care provider
- Grapes – The seeds are good for you! In grape seeds and skin is found a nutrient, Resveratrol. Resveratrol is a great antioxidant which strengthens white blood cell membranes. Eating whole grapes can create a stronger immune system.
- Garlic – The bad breath cannot be hidden, but is another super-food that helps strengthen the immune system. It can be taken as an extract, fresh food, or the less effective odour-free option.
- Cranberry – They are a natural source of antioxidants that help counter the oxidative stress running. The easiest source is through consuming 100% juice. If it’s too tart to drink, dilute it with water.
- Goldenseal – It enhances the effect of other herbs. When used with Echinacea, it increases the production of antibodies and speeds recovery from the common cold. Take caution when using, it is a powerful force. So follow the directions with care.
- Elderberry – A producer of cold and flu antibodies, it has been used for a long time to help treat congestion of the lung and sinuses. Use of store bought extracts or juice are effective in treating, and preventing infection.
Lister, Patience. (2011). Power Plants. Canadian Running, 4(Jan/Feb 2011), 62-63.