Exercise Induced Vomiting

Recently I have taken up endurance sports and on certain days after cycling or swimming I have been getting nauseous. I have read an article about the causes and prevention of exercise induced vomiting. The article says the four main causes of exercise induced vomiting are low blood sugar levels due to exercising on an empty stomach, overexertion, dehydration, and motion sickness from performing abdominal exercises. The article says if the nausea is caused by an empty stomach then you should eat a snack that is highly enriched with carbohydrates and low in fat content about an hour before the work out. If overexertion is the supposed cause of exercise induced vomiting, the article says to scale down the activity level and work your way up to higher levels of activity. To prevent dehydration during exercise, drink 17-20 ounces of fluid about two to three hours before working out and an additional 7-10 ounces ten to twenty minutes before the workout. If abdominal exercises are the cause, the article said to look at a fixed point while doing the exercise and perform abdominal exercises at the end of your workout session. Personally, I think my exercise induced vomiting is caused by not eating anything or over eating before the workout. The high carbohydrate and low fat snack sounds like it should be the perfect thing to eat because carbohydrates are easy for the body to digest (so digestion is completed before exercising and blood is not being utilized by the GI tract during the exercise) and the carbohydrates should provide enough energy to perform the exercise.

Source: http://fitness.suite101.com/article.cfm/how_to_avoid_exerciseinduced_nausea