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N-Acetylcysteine (NAC) is an inexpensive and highly absorbable form of the amino acid cysteine which has numerous health benefits. Previously, I’ve written about several applications for NAC:

• As a preventive measure against the common cold and flu infections
  (see Preventive Measures for Swine Flu)
• Helping prevent liver damage from Tylenol
  (see Health Risks from Tylenol, Acetaminophen, and Paracetamol)
• Detoxifying the body of the mercury from dental fillings, predatory fish, and high fructose corn syrup (see High Fructose Corn Syrup is Dangerous for Many Reasons)
• Aid for mental health conditions such as OCD (obsessive-compulsive disorder) and trichotillomania which is a surprisingly common compulsive behavior involving hair-pulling (see N-Acetylcysteine (NAC) Reduces Hair Pulling Compulsion and May Also Be Useful for OCD)

Furthermore, there is solid evidence that NAC helps boost the body’s levels of glutathione, one of the main antioxidants produced by the body. In particular, glutathione is critical to liver health. Many people suffer from elevated homocysteine levels, an amino acid that is a risk factor for cardiovascular disease. Several studies indicate that NAC can significantly lower homocysteine levels. Finally, if you sometimes drink alcohol and get a hangover, you’ll be interested to know that NAC plus vitamin B1 (thiamine) may help the body reduce the severity of hangovers. There are many other lesser known uses for NAC. I’ll discuss more of these at the end of the article.

Available Forms of NAC

NAC is often sold in capsule form containing 600 mg per capsule, but the bulk powder form of the supplement can be much less expensive. NAC is also the primary ingredient in some pharmaceutical products including a product called Mucomyst that is used to treat mucus build-up by inhalation of a sterile liquid solution of NAC.

This article reviews the 1Fast400 N-Acetyl-Cysteine, NAC sold in bulk powder form. It is priced less than 1/2 the price of the 600 mg capsules from inexpensive reputable makers such as Puritan’s Pride and NOW Foods. Thus the bulk powder form of NAC is a good choice for people who use large quantities of it. Such people might include those with families with several people who use it for general health, immune system boosting, detoxification from mercury and heavy metals, and especially people who use it for mental health care applications similar to clinical testing being done with dosages of 2000 mg per day or more.
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(Updated August 3, 2009, with additional information on the use of vitamin D3 to boost immune system response to prevent or reduce influenza infection and symptoms.)

With growing worldwide concern over a possible pandemic of swine flu (also known as H1N1 flu), you might be wondering what you can do to keep your family and you healthy. Obvious measures already mentioned in much news coverage include washing hands frequently, avoiding contact with people with flu and cold like symptoms, and staying home when you are sick. Although there is no vaccine for this new swine flu strain, there are immune system boosting measures that you can take at low cost which are likely to help you avoid getting flu and to speed recovery if you do get it. We’ll discuss several options you have to help stay healthy despite a flu outbreak. By the way, these suggested measures all apply to other types of flu, too.
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Tylenol is a common over-the-counter painkiller used worldwide. It’s the name-brand version of generic acetaminophen (US name) or paracetamol (name outside of the US). Both generic names are taken from the full chemical name N-acetyl-para-aminophenol. It’s sometimes referred to as APAP. The drug appears both in tablets by itself as well as combined into many other solid and liquid medicines for colds, flus, fevers, and headaches. These include cough syrups and sleep aids. They are labelled and sold for children and adults.

Acetaminophen is also a common ingredient in many stronger painkillers. It is frequently mixed with stronger opioid painkillers such as codeine and hydrocodone. The hydrocodone and acetaminophen mix is generally called Vicodin.
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