Friday Favorites: Do Alkaline Diets Help Athletic Performance?
NutritionFacts.org Video Podcast
Michael Greger, M.D. FACLM
4.8 • 951 Ratings
🗓️ 23 January 2026
⏱️ 5 minutes
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| 0:00.0 | theoretically, bathing your muscles in an alkaline environment should enable faster acid removal |
| 0:15.3 | from muscle cells, delaying the muscle fatigue this due to the build-up of lactic acid in the muscle. |
| 0:25.6 | Given these buffering effects, no wonder sodium bicarbonate, in other words baking soda, has been found to have such significant ergodgenic or performance-enhancing effects on muscular endurance. |
| 0:32.6 | The problem with loading with baking soda is that it frequently causes severe gastrointestinal |
| 0:39.0 | distress, and at standard doses you can easily take in twice the recommended upper daily |
| 0:43.9 | limit of sodium in just that one load. |
| 0:47.2 | Therefore, what about a low-acid diet, which focuses on high intakes of fruits and vegetables? |
| 0:54.1 | That may be an attractive alternative to bicarbonate loading for improving anaerobic |
| 0:59.0 | exercise performance, meaning short-burst activity like sprinting. |
| 1:03.7 | Today's diets are acid-forming, meaning higher in animal foods with fewer vegetables and fruits, |
| 1:09.1 | whereas in general the alkaline-promoting diet is centered around whole-plant foods with fewer vegetables and fruits, whereas in general the alkaline-promoting |
| 1:11.2 | diet is centered around whole-plant foods with few processed foods and less meat, dairy, |
| 1:16.3 | and eggs, which are accepted as acid-forming foods. |
| 1:19.9 | Although alkalizing chemicals, such as sodium-bicarbonate, have been shown to consistently |
| 1:25.4 | improve performance, alkalizing diets do not demonstrate the same effect. |
| 1:30.3 | A review of 10 studies that investigated the effect of high-versus |
| 1:33.3 | low dietary acid loads on athletic performance |
| 1:36.3 | did not find consistently improved exercise performance |
| 1:40.3 | at maximal or sub-maximal exercise intensities. |
| 1:43.3 | However, maybe they just didn't go alkaline enough. |
| 1:48.0 | For example, in this study, they had people eat more fruits and vegetables and less meat, |
| 1:52.0 | cheese, cereals, and eggs, but saw no difference in any performance-related parameters. |
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