The Care And Feeding Of Your Mitochondria

They’re essential to energy, focus, vitality, and metabolism. And yet most of us have no idea how our mitochondria work. Here’s how to tune up your body’s quadrillions of “energy factories” so you can perform at your peak.

We spend billions of dollars every year buying pills, potions, and creams that promise to slow the aging process. But what if we could enlist our own bodies to help us live longer, healthier lives?

Meet your mitochondria — the tiny factories in each of our cells that turn the food we eat and the oxygen we breathe into energy.

When the communication breaks down between our cells’ nuclei and their mitochondria, aging accelerates. But here’s the exciting news — the opposite is also true: when intracellular communication is improved, the aging process slows down, and overall health and vitality improve.

“The aging process, we discovered, is like a married couple,” states Harvard Medical School biologist David Sinclair, PhD. “When they are young, they communicate well. But over time, living in close quarters for many years, communication breaks down.”

Fortunately, Sinclair notes, “restoring communication solves the problem.”

Ready to embark on a mitochondrial makeover? Here’s what you need to know about your body’s primary power source.

Why Mitochondria matter

First, to grasp the sheer scale of mitochondria’s impact on our overall health, consider this: Each of us has quadrillions (that’s thousands of trillions) of these energy factories in our bodies.

Each mitochondrion is filled with some 17,000 biochemical assembly lines, all designed to produce a molecule called adenosine triphosphate, or ATP — our bodies’ major, most elemental fuel.

The more energy a tissue or organ demands for proper function, the more mitochondria its cells contain. Mitochondria are especially abundant in the cells that make up our hearts, brains, and muscles.

In fact, the heart is so energy-intensive that up to 40 percent of the space in its cells is taken up with mitochondrial power plants.

The density and health of the mitochondria in your organs and muscles are, to a large extent, a reflection of your current level of health and fitness (lean muscle tissue, for example, contains far more mitochondria than fat does, and a strong heart is likely to be denser with mitochondria than a weak one.)

The more healthy mitochondria your body contains, the better you’ll feel, and the more robust your metabolism will be. A mighty mitochondrial force translates to better energy and focus, and greater ability to sustain high levels of activity without fatiguing.

Mitochondria produce energy by breaking down food, explains Bruce H. Cohen, MD, a neurologist at Northeast Ohio Medical University and an expert in mitochondrial disease. Then they release that energy in the form of ATP, along with some byproducts, like carbon dioxide, water, and free radicals.

The health implications of such mitochondria-related damage can be far-reaching, says paediatric neurologist Jong Rho, MD, of the University of Calgary and Alberta Children’s Hospital.

But even those of us who start life with healthy mitochondria can undermine and deplete them through basic wear and tear, or through outright abuse.

Stress, sedentary lifestyles, free-radical damage, and exposure to infections, allergens, and toxins can all cause our energy-generation network to falter.

But one of the chief reasons our mitochondria deteriorate, says Cohen, is that we eat an excess of poor-quality foods and a deficit of healthy ones.

The empty calories of sugars, flours, and other processed foods force mitochondria to burn through a great deal of junk — generating free radicals and inflammation as they go — before useful nutrients can be siphoned out.

The glycemic impact of such foods (to say nothing of their trans fats, chemical additives, and other pro-inflammatory factors) only exacerbates the damage.

And unless we are eating plenty of phytonutrients, antioxidants, healthy fats, proteins, and fiber, we aren’t giving our bodies the basic tools they need to repair the damage.

It’s important to recognize, Cohen adds, that from a genetic standpoint, our mitochondria were never designed for the food environment and lifestyle to which we now subject them.

Furthermore, he argues, our ancestors rarely lived to 70, 80, or 90 years. So we are now asking our mitochondria to perform longer under far more challenging conditions.

Nutritional tune-up


There is perhaps no one who has a better understanding of the relationship between nutrition and mitochondrial health than Terry Wahls, MD, clinical professor of medicine at the University of Iowa.

For both general and mitochondrial health, Wahls recommends avoiding foods containing gluten, as well as dairy products, eggs, processed meats containing nitrates, and anything sweetened with sugar. For those especially concerned with their health, Wahls also recommends avoiding all grains, legumes, peanuts, and soy.

Beyond removing these foods, Wahls suggests eating six to nine cups of vegetables and fruits daily, including three green, three deeply colored, and three rich in sulfur (e.g., arugula, broccoli, bok choy). She also recommends eating 6 to 12 ounces of grassfed meat or wild-caught fish daily, plus, for die-hard types, a 14-fluid-ounce can of full-fat coconut milk.

At full force, Wahls’s diet becomes “ketogenic” — that is, so low in carbs and high in fat that the body stops getting energy from glucose (which comes from carbs) and starts burning fat instead.

During ketogenesis, fatty acids enter the liver, which breaks them down into “ketone bodies,” water-soluble biochemicals that can be used for energy, especially in the heart and the brain (two of the body’s most mitochondria-dense regions).

Although Wahls’s work with the ketogenic diet has been largely clinical, there’s strong laboratory evidence for the approach, and a powerful biochemical rationale behind it.

One of its leading advocates is neurologist Jong Rho, who says that in battling mitochondrial dysfunction, ketogenic diets may rank among the most promising treatment strategies available.

“When mitochondria are fuelled by ketones instead of glucose,” Rho explains, “their ability to produce ATP is enhanced and free-radical byproducts are reduced.”

Metabolism Support

Targeted supplementation can also help reverse mitochondrial decay. At the forefront of this research is preeminent biochemist Bruce Ames, PhD, a professor emeritus at the University of California, Berkeley, and senior scientist at Children’s Hospital Oakland Research Institute.

For years now, Ames has been working on ways to protect and restore mitochondria in the brain. His goal is to halt and even reverse the cognitive and neurologic decline that usually comes with age.

Ames’s first line of attack was to try to reverse the mitochondrial deterioration that produces excess free radicals, a process he compares to “an old car engine producing too much smoke,” and thus, not running efficiently.

Aging mitochondria, with their inefficient machinery, damaged DNA, and decaying membranes, can’t clear the smoke, which leads to impaired memory and mental function over time.

The only means Ames knew to slow the process in animals was calorie restriction — flat-out reducing the amount of fuel burned. But it’s hard (and not healthy) to starve humans, so Ames vowed to find another way.

He experimented in the lab, trying out various supplements on a group of aging rats. Acetyl-L-carnitine (ALC), which is known for transporting fatty acids into the mitochondria, shored up the membranes and helped repair the DNA, but it didn’t decrease free-radical production. So, he added alpha-lipoic acid (LA), a mitochondrial coenzyme capable of cleaning up the messes free radicals make.

The result? Ames’s older lab rats — who couldn’t run well on a treadmill and couldn’t navigate in a water pool — were rejuvenated. Their running and swimming improved. Their mitochondria became more youthful, too.

Ames discovered that a host of different micronutrients are involved in mitochondrial health. Looking at human cells, for example, Ames found damage to DNA whenever even one of a number of minerals or vitamins was removed.

To explain the phenomenon, Ames came up with a theory rooted in our hunter-gatherer past, when micronutrient shortages must have been recurrent: To make sure the species was perpetuated, natural selection imposed a “strategic rationing response,” shunting the vital nutrients toward functions essential for short-term survival and reproduction, and away from longevity systems affected by dysfunctional mitochondria.

Joyce McCann, PhD, who works in Ames’s lab, suggests that this metabolic trade-off accelerates diseases.

Although a variety of lifestyle factors contribute to mitochondrial health, says Ames (see below), the single most important thing we can do is to eat a well-balanced, whole-foods diet.

Because research suggests that virtually all U.S. adults are deficient in one or more important nutrients, many experts recommend supplementing with a high-quality multivitamin, vitamin D, essential fatty acids — and perhaps more, depending on your individual profile.

But a cautionary note comes from Bruce Cohen, who points out that many nutrition studies have been done only with mice or cell cultures. “When you try the strategies on humans,” he says, “they don’t always work.”

Wahls is trying to set that right. Her pilot study on the Wahls Protocol, which studied 13 MS patients, was published in The Journal of Alternative and Complementary Medicine earlier this year. Within the study group, six people rigorously adhered to the protocol — including a paleo diet, exercise, meditation, and massage — for a full year. Those patients, who normally would have experienced only further decline, showed clinically significant improvement in fatigue symptoms compared with their baseline assessments.

A great deal more research is necessary, notes Wahls. But eating for your mitochondria, she argues, is almost guaranteed to pay off. “I am the canary in the coal mine, here as a warning to all of you,” Wahls says. “If we don’t care for our mitochondria, we will pay a very high price when it comes to our health.

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