December 13, 2018

Is Coffee Good For You?

Articles by Dr. Erdman are for informational purposes, and are not to be taken as specific medical advice.


The good ole cup of Joe! Some can’t do without it, some just like a cup once in a while. Is it good for you or not? Is the caffeine bad? Let’s look at what some recent research has to say.

Most people have been told, and believe, that coffee is bad for you. I’ve heard it called, “sin in a cup.” But, as with many notions derived from lack of actual research, it isn’t true. Coffee actually shows some beneficial properties. The greatest benefit comes to those in middle age and beyond.

A 10 year study showed that people who drank four cups of coffee per day had a 64% decrease in their risk of dying of any cause. Among those over 45, every two cups of coffee per day reduced their risk of dying by 30%; no such association was seen in younger adults. This study did account for variables such as gender, lifestyle, overall diet and other demographic information, such as smoking, sugar consumption and other factors. In all cases, these factors didn’t impact the lowered death risk for coffee drinkers.


There are several positive benefits of coffee consumption. The first is that it is a rich source of antioxidants, which play a vital role in immunity and disease prevention.

Alzheimer’s, dementia, Parkinson’s and Type 2 diabetes are all chronic conditions managed and prevented by a healthy lifestyle. However, regular coffee drinking has proven to have a reduced risk in developing these conditions.

The caffeine in coffee can increase exercise performance by 10%. The effects are best produced by drinking a cup of coffee about one hour prior to activity. Water is still the best hydration, but coffee does not cause dehydration, as popular opinion has it.

The caffeine in coffee also has been shown to increase alertness and productivity throughout the day. One of the ways businesses subtly increase worker performance is to allow and encourage coffee consumption during the workday. Conversely, it also interferes with sleep patterns, as most already know. So if you have sleeping difficulties, leave the coffee alone after supper.

Coffee also has substances that protect the liver against cirrhosis.

Some studies suggest pregnant women can drink three cups of coffee a day without incurring health risk. Dr. Mercola still recommends pregnant women avoid caffeine, but several good studies show a link between coffee consumption and lower fetal mortality. Moderation is the key during pregnancy, in all things.

Coffee can help you burn fat, improve energy levels and fight depression.

The worst thing about coffee is drinking coffee from bad sources. There are many additives and pesticides used in the non-organic growing process. Choose organically grown coffee for the best health effects.

The other additives people put in coffee, like artificial sweeteners and fake flavorings are not part of the healthful effects of coffee. Use natural flavorings and stevia if you need, but avoid the calories and sugar most tends to use.

If you’re a coffee drinker and want to enjoy these benefits, remember a cup of coffee is 8 ounces, not 32. No studies were done using pots of coffee as the measure of benefit!