Potassium-rich foods include beans, lentils, potatoes, bananas, leafy greens, yogurt and fish. This essential mineral helps with normal nerve transmission, muscle contraction and fluid balance. Getting it through a varied diet is a practical nutrition goal, not a promise that a particular food will relieve anxiety or restlessness.
The seven examples below use serving amounts from the NIH Office of Dietary Supplements’ potassium food table. Values are approximate: variety, brand, portion and preparation can change the amount you eat. The list is a selection of useful foods, not a ranking from best to worst.
1. Bananas
About 422 mg in one medium banana. Bananas are a familiar, portable way to add potassium to a meal or snack. Slice one over oats or yogurt, blend it into a smoothie, or pair it with nut butter.
They are convenient, but they are not the only option. If you do not enjoy bananas, the other foods below can contribute to your intake too.
2. Baked potatoes
About 610 mg in the flesh of one medium baked potato. A potato can form the base of a satisfying meal. Add beans, vegetables, yogurt or another topping you enjoy rather than treating it only as a side dish.
This figure refers to a specific serving of baked potato flesh. It should not be applied unchanged to sweet potatoes, chips or every potato product.
3. Lentils
About 731 mg in one cup of cooked lentils. Lentils work in soups, stews, salads and grain bowls. They also contribute plant protein and fiber, making them useful when you want a meal with more substance.
Cook a batch for several meals or use a convenient prepared option. A smaller portion still contributes potassium; you do not need to eat a full cup at every sitting.
4. Kidney beans
About 607 mg in one cup of canned kidney beans. Add them to chili, soup, rice dishes or a mixed-bean salad. Canned beans can make a quick meal easier when you have little time to cook.
Check the package for serving information and sodium if that is a consideration for you. The potassium amount in another bean variety or preparation may differ.
5. Spinach
About 334 mg in two cups of raw spinach. Use spinach in a salad, add it to a sandwich, or stir it into a warm meal. Pairing greens with food you already enjoy can be easier than trying to redesign your whole diet.
Raw and cooked cup measures are not equivalent because spinach shrinks during cooking. Keep the preparation in mind when comparing nutrient figures.
6. Yogurt
About 240 mg in six ounces of plain, nonfat Greek yogurt. Yogurt can be a breakfast ingredient, a snack or a base for a savory sauce. Add fruit and oats, or use it alongside a baked potato.
Potassium varies by yogurt type and brand. The NIH table lists about 330 mg for a six-ounce serving of nonfat fruit yogurt, so use the figure that matches what you actually eat.
7. Salmon
About 326 mg in three ounces of cooked, farmed Atlantic salmon. Salmon can fit into a rice bowl, salad or simple meal with potatoes and vegetables. It contributes protein as well as potassium.
The value depends on the fish and preparation. The serving above is an example, not a requirement to eat a particular type or amount of fish.
Build variety across the day
You do not need to include all seven foods in one day. Start with an easy addition to meals you already make:
- Add banana or yogurt to breakfast.
- Use beans or lentils in a lunch bowl or soup.
- Include a potato or leafy greens with dinner.
For the wider relationship between eating patterns and well-being, see our food and mood guide. Our nutrient-focused guide also covers practical choices during stressful weeks.
When more potassium is not the goal
Some people need individualized potassium advice, including those with impaired kidney function or medicines that affect potassium levels. If you have been told to limit potassium, follow that guidance rather than increasing these foods or using a potassium-containing salt substitute on your own.
A food list is not a reason to start a potassium supplement. Ask a qualified healthcare professional about your needs if you have a medical condition, take medication or have concerns about your potassium level.
Can potassium-rich foods help with anxiety?
Potassium is necessary for normal body function, but that does not establish that eating more will relieve anxiety or restlessness. Regular, varied meals can support your overall nutrition while you address sleep, stress and other parts of daily life. Persistent or disruptive symptoms deserve appropriate professional care.
