Am I worried about lead poisoning? No. I can't see this national (maybe transnational) brand selling one product in California and another product in other states (perhaps provinces?).
Not sure I'm following you on that - why not? On the dopamine connection, the below is the sort of thing I mean. Just wondering about its veracity - maybe it's completely erroneous?
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Many of the natural chemical compounds in raw cocoa or cacao beans and in organic dark chocolate have been discussed in scientific literature as being pharmacologically significant to health. Here is a partial list of these active substances in natural organic chocolate (and more are discussed below).
Anandamide (a neurotransmitter known as "the bliss chemical")
Arginine (nature's aphrodisiac)
Dopamine (a neurotransmitter)
Epicatechins (antioxidants)
Magnesium (for healthy heart function)
Serotonin (anti-stress neurotransmitter)
Tryptophan (anti-depressant amino acid)
Phenylethylamine (PEA) (controls the ability to focus attention and stay alert)
Polyphenols (antioxidants)
Histamine
Tyramine
Salsolinol
Phenylethylamine (PEA) in Cocoa
PEA is a chemical found in cocoa/cacao beans which increases the activity of neurotransmitters (brain chemicals) in certain areas of the brain which control the ability to focus attention and stay alert. Elevated PEA levels occur naturally when we are captivated by a movie or good book, or wholly focused on a project or task - when we lose track of time and are not consciously unaware of what is happening around us.
PEA is found in higher levels in the brains of happy people. Cocoa or dark chocolate has been found to contain up to 2.2 percent PEA (phenylethylamine).
Anandamide (The Bliss Chemical) in Cocoa
Anandamide (or n-arachidonoylethanolamine) is a neurotransmitter which has been isolated in cocoa in quantities which are significant enough to affect the brain. Anandamide is a cannabinoid naturally found in the human brain. Anandamide is a lipid (a fat) known as "the bliss chemical" because it is released when we are feeling good. (Anandamide is the English spelling; anandamine is the French spelling.)
It is true that anandamide has a similar effect to the compound THC in cannabis (marijuana), but it acts in a different way; acts only on certain groups of brain cells and not the whole brain; and thus creates blissful feelings with much less intensity.
Monoamine Oxidase Inhibitors (MAO Inhibitors) in Cocoa/Cacao
These rare MAO inhibitors actually produce favorable results when consumed, by allowing more serotonin and other neurotransmitters such as anandamide, dopamine and others to circulate in the brain. According to Dr. Gabriel Cousens, MAO inhibitors facilitate anti-aging and rejuvenation.
MAO inhibitors make one feel younger when they allow more neurotransmitters to remain in the bloodstream. A primary phenomenon that differentiates children from adults is the level of neurotransmitters in the blood and bodies of children. In general, as one lives longer and longer the level of neurotransmitters decreases. This leads to less creativity, less joy, more physical rigidity - and more rapid aging!
Cocoa, with its supply of MAO inhibitors, helps keep plenty of neurotransmitters in circulation, and thus helps prevent this unhappy phenomenon from occurring. "Think young - you'll have more fun!"
Now that you have learned how cocoa contains PEA, Anandamide, and MAO Inhibitors, and learned about the happy effects these chemicals can produce, can you see how real chocolate might deserve to be called "the happiest food"?