Aspartame (Last part )

2. Phenylalanine (50 percent of aspartame)

Phenylalanine is an amino acid normally found in your brain, however people with the genetic disorder phenylketonuria (PKU) cannot metabolize phenylalanine. This leads to dangerously high -- and sometimes lethal -- levels of phenylalanine in your brain. It has been shown, though, that ingesting aspartame, especially along with carbohydrates, can lead to excess levels of phenylalanine in your brain even if you do not have PKU.

Even consuming aspartame one time has been found to raise your blood levels of phenylalanine. What’s the risk of this?

Excessive levels of phenylalanine in your brain can cause the levels of serotonin in your brain to decrease, leading to emotional disorders such as depression. It can also cause schizophrenia or make you more susceptible to seizures.

3. Methanol (aka wood alcohol) (10 percent of aspartame)

Methanol/wood alcohol is a deadly poison, and the absorption of methanol into your body is sped up considerably when free methanol is ingested. Well, free methanol is created from aspartame when it is heated to above 86 degrees Fahrenheit (30 Centigrade). This would occur when an aspartame-containing product is improperly stored (in the sun, for instance) or when it is heated, such as part of a "food" product like Jello.

Meanwhile, methanol breaks down into formic acid and formaldehyde -- a deadly neurotoxin -- in your body.

Even the U.S. Environmental Protection Agency (EPA) states that methanol "is considered a cumulative poison due to the low rate of excretion once it is absorbed. In the body, methanol is oxidized to formaldehyde and formic acid; both of these metabolites are toxic."

They recommend a limit of consumption of 7.8 mg/day, but a one-liter aspartame-sweetened beverage contains about 56 mg of methanol. Heavy users of aspartame-containing products consume as much as 250 mg of methanol daily -- or 32 times the EPA limit!

The symptoms of methanol poisoning are numerous and varied. They include:

• Vision problems
• Headaches, ear buzzing, dizziness
• Nausea and gastrointestinal disturbances
• Weakness, numbness and shooting pains in your extremities
• Behavioral disturbances
• Memory lapses

From Mercola.com