the best sources of calcium are dairy products and tinned fish; egg yolks, beef, cheese and liver are the best source of chromium; iron is best provided by organ meats; iodine is found in abundance in fish and kelp (seaweed); magnesium and manganese are plentiful in nuts and whole grains; good sources of selenium are organ meats, fish and shellfish and zinc is found in oysters, liver, meat, cheese and fish generally. Potassium is the one mineral for which fruits and vegetables are the best sources. Potassium, however, can also be found in all of nature’s foods, so we don’t need fruits and
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