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Very Very High Chromium Content Of Cocoa Powder,according To This Study

paymanz

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Its super high, a few savings of chocolate may deliver more than upper limit of chromium.

Not sure,maybe its an error!

Upper limit of chromium apparently is 1,000 mcg.

According to this study 4grams of cocoa powder contains about 400mcg of chromium.

Macro- and Microelemental Composition and Toxicity of Unsweetened Natural Cocoa Powder in Sprague-Dawley Rats
Table:
Macro- and Microelemental Composition and Toxicity of Unsweetened Natural Cocoa Powder in Sprague-Dawley Rats

A total of thirty-eight (38) macro-12 elements (sodium (Na), magnesium (Mg), aluminium (Al), silicon (Si), phosphorus (P), sulphur (S), chlorine (Cl), potassium (K), calcium (Ca), titanium (Ti), manganese (Mn), and iron (Fe)) and micro-26 elements (vanadium (V), chromium (Cr), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), gallium (Ga), arsenic (As), rubidium (Rb), strontium (Sr), yttrium (Y), zirconium (Zr), niobium (Nb), molybdenum (Mo), antimony (Sb), iodine (I), cesium (Cs), barium (Ba), lanthanum (La), cerium (Ce), hafnium (Hf), tantalum (Ta), lead (Pb), bismuth (Bi), thorium (Th), uranium (U)) (Table 1) were identified and evaluated.
 
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paymanz

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[Pompholyx of the infant possibly induced by systemic metal allergy to chromium in mother's milk]. - PubMed - NCBI
A seven month-old boy had been suffering from recalcitrant pompholyx of both soles in spite of the treatment with corticosteroid ointment for three months. Because patch test of chromium was positive at 48 and 96 hr reading, we advised to his mother that the infant must avoid to touch and to take the chromium-containing goods. His lactating mother had been taking high amounts of chocolate and cocoa every day, both of which contain considerable amounts of chromium. The pompholyx disappeared within 2 weeks, after his mother stopped eating chocolate and cocoa. Oral provocation test with chocolate and cocoa to the patient's lactating mother resulted in the development of pompholyx in the baby within two days. We diagnosed the infant as systemic metal allergy to chromium which was possibly transferred from his mother's milk. This is the first report of systemic metal allergy which is provoked by mother's milk which is from the person who takes a lot of metal-containing foods.
 

paymanz

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Another study, cr level is much lower here ,but cocoa still is a good source.
Chocolate and Cocoa Products as A Source of Essential Elements in Nutrition

I just surprised by errors these scientists make in their work, no one cneck their work befor publishing it?
Magnesium

Cocoa and chocolate are a strong source for Mg (median 1205 mg/ kg, range 530-2521), and range like whole-meal bread and potatoes [22]. Cocoa contains 4-5 times more Mg than peas, white wheat, corn, and rice [24]. The recommended daily intakes of 300-400 mg Mg are covered by about 300 mg chocolate.

Manganese

Manganese levels in cocoa and its products (median 12.3 mg/ kg, range 2.73-26.2) are slightly less than in cereals, but more than in potatoes, maize and meat of any kind [22,24,26]. It is not realistic to meet the recommended daily intake of 10-30 mg Mn from chocolates. In Poland, (milk, cheese, eggs baby food, honey), chocolate contained significantly more Mn (8.3 ± 3.8) among nutrients important to feed babies and small children than milk and honey and eggs [30]. In the US, mean Mn concentration met in milk chocolate candies was 3.37 mg/kg [27].
LoL

Now idk what source is really reliable!

I was looking for molybdenum content of cocoa and i found these!
 

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