Mitochondria, the tiny energy producing factories in our cells, function from the support of necessary nutrients obtained from our diet. The bottom line is a lousy diet will often lead to poor mitochondrial function, and a healthy and robust whole food diet should provide the necessary nutrients to support healthy mitochondria. Supplements like CoQ10, L-carnitine, and magnesium are sometimes necessary for additional mitochondrial support, but supplements should always be complemented by a healthy diet for optimal effects. There are several nutrients and foods that support mitochondrial health and optimize their function. These include:
Antioxidants
Mitochondria through their production of adenosine triphosphate (ATP) in an oxygen rich environment generate a normal level of oxidative stress, but too much oxidation leaves the mitochondria vulnerable to damage. Various antioxidants from foods can be helpful
- Vitamin C – found in citrus fruits, strawberries, bell peppers, and broccoli. Broccoli also contains sulforaphane which has its own antioxidant properties.
- Vitamin E – found in nuts, seeds, spinach, and avocado. Avocado is a good source of magnesium too which supports chemical stabilization of ATP being used throughout the cell for various purposes.
- Coenzyme Q10 (CoQ10) – found in organ meats, fatty fish, and whole grains. CoQ10 is essential for the mitochondrial electron transport (ETC) chain. Eggs, butter (from grass-fed cows), and organic olive oil are other food sources of CoQ10. For example, olive oil per 1/16th of a teaspoon has 11 milligrams of CoQ10.
B Vitamins
B vitamins are crucial for energy production within the mitochondria. For example, key enzyme complexes responsible for Krebs cycle activity, and the metabolism of certain amino acids require various B-vitamins such as B1, B2, B3, and B5:
- B1 (Thiamine) – found in whole grains, legumes, and pork. Thiamine is the rate-limiting nutrient for pyruvate dehydrogenase, alpha-keto acid dehydrogenase, and branched chain ketoacid dehydrogenase activity. All three of these enzymes greatly influence a cell’s ability to generate energy production.
- B2 (Riboflavin) – found in eggs, green leafy vegetables, and dairy products. Riboflavin is important for many biochemical reactions, including MTHFR function, and support of the mitochondria’s electron transport chain (ETC) at complexes I and II.
- B3 (Niacin) – found in poultry, fish, and whole grains.
- B5 (Pantothenic acid) – found in avocados, eggs, and whole grains.
- B6 (Pyridoxine) – found in fish, poultry, potatoes, and bananas.
- B12 (Cobalamin) – found in animal products like meat, fish, dairy, and eggs. Nutritional yeast is another source of B12.
Magnesium
Magnesium is involved in ATP production and supports the mitochondria’s energy processes. Magnesium through its chemical nature helps in stabilizing the negative charges of ATP so it can be effectively used throughout the cell for various reactions:
- Magnesium – found in dark leafy greens (spinach), nuts, seeds, and whole grains. Almonds are another food source of magnesium, along with avocado and banana. One cup of almonds is approximately 20% of the RDA for magnesium, and a banana is about 10% of the magnesium’s RDA.
Omega-3 Fatty Acids
Omega-3s help maintain mitochondrial membrane integrity and support mitochondrial biogenesis. Biogenesis is the formation of new mitochondria, and maintaining membrane integrity is crucial for mitochondrial function. For example, lipid oxidation of the inner mitochondrial membrane leads to ETC instability, poor ATP production, and apoptosis signaling which can lead to mitochondrial and cellular death.
- Omega-3 Fatty Acids – found in fatty fish (salmon, mackerel, sardines), flaxseeds, chia seeds, and walnuts. Sardines mentioned in this food list are also a good source of multiple B-vitamins, including B12.
Alpha-Lipoic Acid
This powerful antioxidant plays a role in mitochondrial function and energy metabolism. Lipoic acid is also important in various dehydrogenase enzymes mentioned previously, along with multiple B-vitamins such as thiamine.
- Lipoic acid – is naturally found in organ meats (liver, kidney), spinach, broccoli, and tomatoes.
L-Carnitine
L-carnitine helps transport fatty acids into the mitochondria, where they are converted into energy.
- Carnitine – found in animal products, particularly red meat, but also chicken, fish, and pork. L-carnitine in supplement form is also used to directly support mitochondrial function.
Polyphenols
Polyphenols, found in berries, dark chocolate, green tea, and red wine (in moderation), have antioxidant properties and can enhance mitochondrial function.
Sulfur Compounds (from Cruciferous Vegetables)
Sulfur compounds support mitochondrial function by improving detoxification processes (primarily in the liver), but sulfur too (along with iron) play an important role in key mitochondrial biochemical reactions involving the Krebs cycle and ETC. Iron-sulfur clusters linked to these respective nutrients are vulnerable to oxidative stress. Sulfur is found in many foods such as garlic, onions, broccoli, Brussels sprouts, and cabbage.
Zinc
Zinc plays a role in mitochondrial energy production and antioxidant defense as well. Nuts, seeds, e.g., pumpkin, beans, and whole grains all contain zinc. Another food source is grass fed beef.
Conclusion:
There are other nutrients that can be supportive for mitochondrial function such as copper, iron, vitamin K, and manganese. The point is when considering a “mitochondrial diet” for long-term health it is advantageous to diversify your food selection, including both animal and many non-animal food sources, i.e., fruits, seeds, vegetables. Accounting for personal preferences, as well as food intolerances and allergies, a robust diet which includes fatty fish (e.g., salmon) provides omega-3s and CoQ10, leafy greens such as kale provides magnesium and antioxidants, and berries such as blueberries contain polyphenols and antioxidants too. Avocados contain healthy fats and magnesium, and a variety of nuts and seeds provide these nutrients as well. Eggs are great for B-vitamins, and plenty of cruciferous vegetables are abundant in sulfur and antioxidants.

