> A couple of times I have seen coffee that had been stored near herbs that made it slightly allergenic, but that could probably be noticed in the flavor. > Dry instant coffee is close to 0.5% [[magnesium]], so a cup of strong coffee has about 40 mg. I make strong drip coffee. > The antioxidants in very fresh coffee might have some special value, but I think instant coffee is on average just as good as brewed coffee. The high temperature of espresso gets the most [[caffeine]], lower temperature processes get the minerals and vitamins (mostly niacin) and aroma, but a little less of the [[caffeine]]. > It's important not to drink coffee on an empty stomach, it should always be with food, since it increases the metabolic rate, and can deplete glycogen stores. > Drinking coffee with meals will greatly reduce [[iron]] absorption. Abnormal [[thyroid]] status can affect ferritin level, without necessarily affecting your [[iron]] load. > [Coffee enemas - "He takes one or two cups of filter coffee and uses it as an enema (holding it in for 15-20 minutes)."] Coffee in such small amounts probably is more effective for protecting against bowel [[cancer]] and liver disease when it's used by enema, rather than orally, but I think the general effects might be better when it's drunk. > Organic coffee is preferable (in the coffee orchards I have seen no pesticides were needed), but the roasting process probably eliminates any added chemicals. > [Coffee withdrawal] I suspect that it happens mostly with [[hypothyroidism]], because in the 1970s I averaged dozens of cups a day, and thought about it as soon as I woke up, then suddenly after I took some [[thyroid]], I didn't feel any need for it. > [How beneficial are coconut oil and coffee to a healthy person with a good diet?] If the basic foods were chosen for minimal unsaturated fats, then coconut oil wouldn't add much of value. Coffee is a good source of [[magnesium]] and niacin, and has smaller amounts of other essential nutrients, besides the [[caffeine]] and antioxidants.