Are Grains Healthy?

While books and websites have demonized grains in every form, the scientific literature does not support this belief.  Indeed, in study after study, grains can be healthy provided they are real whole grains.  Real whole grains are high in fiber and are not processed.

Processed grains, on the other hand, are really just sugar.  It's also pretty clear that processed grains are responsible for much of the obesity crisis, as well as the epidemic of atrial fibrillation, heart failure and diabetes that I see in my cardiology practice every day.

Everyone Loves Processed Grains

After a five hour winding five hour bus ride through the thick mountain foliage of southwest China, not far from the Vietnam border, we met Fang. When our family arrived it was after midnight and we were in the middle of a torrential downpour.

His was the last taxi and he agreed to take us the last hour of the journey to China's Longevity Village.  As part of our conversation, he shared with me that he grew up in China's Longevity Village and then moved to Bama city as an adult to find work.

Growing up, the only grains he ate was brown rice and whole wheat that was not yet pulverized into flour.  Because this remote village lacked the industrial machinery to process rice and wheat, he had no choice but to eat real whole grains.

Over time, China's economic miracle made its way to even this remote corner of China.  With economic prosperity also came white rice and white wheat flour.  Fang, like almost everyone else in China, enthusiastically embraced this change.

With processed grains has also come a diabetes, obesity, and heart disease epidemic in China.  Fang was not exempt.  He now had a belly that extended well beyond his belt and he looked nothing like the lean Chinese still living the traditional lifestyle in the village.

4 Things to Know About Grains

Every day patients ask me, "are grains healthy?"  As there is so much confusion about grains, below are four important things to know about grains.

1. Are grains healthy?

The answer to are grains healthy is simple, it depends.  If it is a processed grain, stripped of fiber, then it is really nothing more than sugar.

Sugar, whether it comes from white crystals, high fructose corn syrup,  or processed grains has the same effect to the body.  Metabolism is altered, the gut flora changes, and inflammation is ignited with resulting obesity, diabetes, and heart disease.

On the other hand, real whole grains, or those grains which are high in fiber and look like the plant they came from, may protect you from obesity, diabetes, and heart disease.  Indeed, studies show that real whole grains may even be protective against cancer.

In a Harvard University study of 367,442 people followed for 14 years, those who ate the most whole grains were 17% more likely to still be alive, 21% less likely to die from heart disease, 15% less likely to get cancer, and had 34% less diabetes.

These Harvard researchers concluded that it was the fiber in whole grains that is protective.  Fiber reduces inflammation, helps to create a healthy gut flora, and has many other health benefits including blood pressure and cholesterol lowering.

2. Do grains cause weight gain?

The reason why most people gain weight from grains is because most people eat the fiber-less processed grains.  In another Harvard study, researchers studied 173,230 people for as long as 25 years, to understand the effect of grains on body weight.

These Harvard researchers found that for every extra serving of processed grains you average daily, your weight goes up 0.14 pounds per year.  While this doesn't seem like much, it can quickly add up.

For example, eating cereal for breakfast, a sandwich on white bread for lunch, and a roll at dinner on most days would cause you to gain a pound a year.  For an adult, that works out to be a 45 pound weight gain by age 65!

On the other hand,