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2004/06/05, 12:21 AM
Most protein shakes/etc (maybe all) contain phenylalanine. I didn't think of it much until I read this article.
"HOW MUCH DO I NEED? Most people get plenty of phenylalanine from their diets. Too much can cause anxiety, headaches, insomnia, and high blood pressure. If you choose to supplement, some experts recommend keeping supplemental intake to no more than 3,000 mg a day.
For best results it should be taken on an empty stomach. It can take one to two weeks to get the desired result. Do not take for more than three weeks at a time, as it may interfere with the body's amino-acid balance. Long-term supplementation of phenylalanine and other amino acids can also cause liver and kidney damage.
SAFETY The FDA considers phenylalanine safe, although some people may be sensitive to high doses. The FDA has reported cases of heart palpitations, shortness of breath, headaches, high blood pressure, insomnia, and hyperactivity after taking phenylalanine supplements."
whole article here http://articles.findarticles.com/p/articles/mi_m0NAH/is_1_29/ai_54062657
I looked at the shakes I take and noticed that I consume 3000mg+ a day. Should I stop? Anyone else have concerns?
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