Written by DaVita ® renal dietitian, Sara Colman, RD, CSR, CDE Certain high-potassium foods, such as potatoes, can be soaked in water to reduce their potassium content for people on the kidney diet, For years, renal dietitians have instructed patients on low-potassium diets to cut up and leach or soak potatoes to reduce the potassium load.
- That’s because one small potato (1-3/4 inches to 2-1/4 inches in diameter) contains more than 700 milligrams of potassium.
- And one average-sized, whole, baked potato (2-1/3″x 4-3/4″ or about 1-1/3 cups, if measured) contains 926 milligrams of potassium with the skin or 610 milligrams of potassium without the skin.
If you are on a low-potassium diet, this is a considerable amount for one serving. What’s the best way to reduce potassium in potatoes? For the most effective potassium removal, potatoes must be cut into small pieces, sliced thin or grated. If boiled at least 10 minutes in a large pot of water, potassium is reduced by at least half the original amount.
These potatoes will still contain 100 to 200 milligrams of potassium in a 1/2-cup serving so people on a low-potassium diet are encouraged to pay attention to portion control. If boiling isn’t the planned cooking method, potassium may still be reduced by slicing or cutting potatoes into small pieces or grating them and soaking them in a large amount of water at room temperature or warmer for greater potassium removal.
The least effective method of removing potassium is to soak potatoes in the refrigerator, then prepare without boiling first. What about other forms of potatoes? Canned potatoes go through a natural leaching process due to soaking in the canned water.
A 1/2-cup serving of drained canned potatoes that is one inch in diameter contains 206 milligrams of potassium. Instant potatoes are highly processed and lose some potassium during processing. A 1/2-cup serving of prepared potato granules or flakes contains 150 to 220 milligrams of potassium. Hash browns, either frozen or home prepared, contain 340 to 450 milligrams of potassium in a 1/2-cup portion.
Grated potatoes that are soaked or boiled according to the researchers’ methods and then fried contain between 100 to 150 milligrams of potassium in a 1/2-cup portion. A comparison of 16 different varieties and brands of potato chips reveals a range of 265 to 495 milligrams of potassium for one cup of chips or a one-ounce bag.
- A small order of French fries from five major fast food chains ranges from 470 to 510 milligrams of potassium.
- That’s about 20 milligrams for each French fry.
- A super-sized order has 1,210 milligrams potassium—more than half the daily allowance for a low-potassium diet.
- What about leaching or soaking other vegetables? While leaching and soaking work for potatoes, it’s not recommended that you soak or boil all vegetables in water because water-soluble vitamins including C, as well as B vitamins, are lost in the water.
Also, all vegetables are different and don’t lose the same amount of potassium when leached or boiled.
Does peeling potatoes remove potassium?
Helpful hints –
- Potatoes are very high in potassium but you can remove part of the potassium by using one of these methods:
- Double cook method: Peel and dice or cut potatoes. Place in a large pot of water and bring to a boil. Drain the water and add fresh water to the pot. Bring to a boil, cook for 10 minutes then drain and set aside.
- Leaching method: Peel and dice potatoes. Place in a large pot of warm tap water and soak for 2 to 4 hours. Drain and set aside.
- Dry potatoes well before adding to hot oil.
- If no salt added ketchup is substituted for regular ketchup sodium will be reduced to 7 milligrams per serving. (Avoid brands containing potassium chloride).
Are skinless potatoes high in potassium?
Are all the nutrients in the skin of the potato? – No. While the skin does contain approximately half of the total dietary fiber, the majority (> 50%) of the nutrients are found within the potato itself. FACTS
The only nutrient significantly lost when the skin is removed is fiber.
A medium (5.3 oz) potato contains 2 grams of fiber with the skin and 1 gram of fiber without the skin.1
Potassium and vitamin C are found predominantly in the flesh of the potato.
A medium (5.3 oz) potato with the skin contains 620 mg of potassium and 27 mg of vitamin C.1 Removing the skin eliminates approximately 150 mg of potassium and 4.5 mg of vitamin C.
Does cooking potatoes destroy potassium?
With the start of fall comes the start of the potato harvest, the busiest time of year for potato growers. Since I busted several potato nutrition myths earlier this year, this seemed like a good time to return and address some other misperceptions so you can get beyond the myths and enjoy nutritious and delicious potatoes more often this harvest season and all year round.
MYTH #1. MOST PEOPLE EAT TOO MANY POTATOES. Contrary to popular belief, the consumption of potatoes in all forms is well within current food intake recommendations. The 2010 Dietary Guidelines for Americans recommend 2 – 8 cups of starchy vegetables per week (based upon calorie needs) and potatoes fall into this vegetable subgroup, yet Americans only eat about 50% of the vegetables they should.
One way to close this gap is to eat more potatoes since research suggests that consumers of white potatoes, on average, eat more vegetables than those who don’t eat potatoes. MYTH #2. MOST COOKING METHODS DESTROY THE NUTRIENTS IN POTATOES. While boiling potatoes does cause a small loss of water-soluble nutrients like vitamin C and vitamin B6, the white potato retains most, if not all, of its potassium and dietary fiber regardless of cooking method, such as baking, boiling, or frying.
- You might be surprised to learn that frying, because it decreases water, actually increases the concentration of key nutrients including potassium.
- In fact, a recent study found that on a gram weight basis the white potato in all of its cooked forms provides more potassium and as much dietary fiber as other commonly consumed fruit and vegetables.
MYTH #3. ADDING TOPPINGS TO BAKED POTATOES MAKES THEM TOO HIGH IN FAT AND CALORIES. The only thing coming between you and a great tasting baked potato is your imagination! Traditional toppings like butter, sour cream and bacon bits can be high in fat and calories, but there are plenty of others that are not.
Here’s a list of tasty and nutritious toppings to help you discover many new ways to top a baked potato. Use just one or try a combination to create the perfect flavor profile for you. Dijon Mustard Sautéed Mushrooms Crumbled Feta Cheese Low-fat Greek Yogurt Caramelized Onions Grated Smoked Gouda Chunky Salsa Sliced Scallions Melted Pepper Jack Cheese Marinara Sauce Diced Black Olives Shaved Parmesan Cheese Guacamole Black Beans Shredded Manchego Cheese MYTH #4.
IF I GIVE MY CHILDREN POTATOES AT DINNER, THEY’LL FILL UP ON THEM AND WON’T EAT THEIR VEGETABLES. One thing most parents quickly find out when planning family-friendly meals is that children love potatoes! That’s good news for kids and parents alike because potatoes are vegetables and provide the same key nutrients, or more, than other family favorites.
How much potassium does a boiled potato have?
Written by irishkidneydiet.ie on March 3, 2016, ‘Double boiling’ a peeled and chopped potato removes up to 50% of the potassium in the potato. ‘Double boiling’ is the term used to describe, one method of producing low potassium potatoes. The potatoes are peeled, chopped into small pieces and placed into a large pot of boiling water (ratio 4:1 water: potato).
The water is brought to the boil, discarded & replaced with a large amount of fresh boiling water (ratio 4:1 water: potato). The potatoes are cooked in this water and the water is then drained before measuring the potato allowance. An average peeled and boiled potato (175g) contains 490mg / 12.5mmol potassium and double boiled this will reduce to 245mg / 6.3mmol potassium.
Click here to learn more about preparing low potassium potatoes,
How do you get potassium out of a potato?
Written by DaVita ® renal dietitian, Sara Colman, RD, CSR, CDE Certain high-potassium foods, such as potatoes, can be soaked in water to reduce their potassium content for people on the kidney diet, For years, renal dietitians have instructed patients on low-potassium diets to cut up and leach or soak potatoes to reduce the potassium load.
- That’s because one small potato (1-3/4 inches to 2-1/4 inches in diameter) contains more than 700 milligrams of potassium.
- And one average-sized, whole, baked potato (2-1/3″x 4-3/4″ or about 1-1/3 cups, if measured) contains 926 milligrams of potassium with the skin or 610 milligrams of potassium without the skin.
If you are on a low-potassium diet, this is a considerable amount for one serving. What’s the best way to reduce potassium in potatoes? For the most effective potassium removal, potatoes must be cut into small pieces, sliced thin or grated. If boiled at least 10 minutes in a large pot of water, potassium is reduced by at least half the original amount.
These potatoes will still contain 100 to 200 milligrams of potassium in a 1/2-cup serving so people on a low-potassium diet are encouraged to pay attention to portion control. If boiling isn’t the planned cooking method, potassium may still be reduced by slicing or cutting potatoes into small pieces or grating them and soaking them in a large amount of water at room temperature or warmer for greater potassium removal.
The least effective method of removing potassium is to soak potatoes in the refrigerator, then prepare without boiling first. What about other forms of potatoes? Canned potatoes go through a natural leaching process due to soaking in the canned water.
A 1/2-cup serving of drained canned potatoes that is one inch in diameter contains 206 milligrams of potassium. Instant potatoes are highly processed and lose some potassium during processing. A 1/2-cup serving of prepared potato granules or flakes contains 150 to 220 milligrams of potassium. Hash browns, either frozen or home prepared, contain 340 to 450 milligrams of potassium in a 1/2-cup portion.
Grated potatoes that are soaked or boiled according to the researchers’ methods and then fried contain between 100 to 150 milligrams of potassium in a 1/2-cup portion. A comparison of 16 different varieties and brands of potato chips reveals a range of 265 to 495 milligrams of potassium for one cup of chips or a one-ounce bag.
- A small order of French fries from five major fast food chains ranges from 470 to 510 milligrams of potassium.
- That’s about 20 milligrams for each French fry.
- A super-sized order has 1,210 milligrams potassium—more than half the daily allowance for a low-potassium diet.
- What about leaching or soaking other vegetables? While leaching and soaking work for potatoes, it’s not recommended that you soak or boil all vegetables in water because water-soluble vitamins including C, as well as B vitamins, are lost in the water.
Also, all vegetables are different and don’t lose the same amount of potassium when leached or boiled.
What type of potato is lowest in potassium?
Results – Mean potassium content was highest in the purple Viking potato (448.1 ± 60.5 mg /100 g ), and lowest in the Idaho potato (295 ± 15.7 mg /100 g). All raw potatoes had a mean potassium content of about 300 mg (7.7 mEq)/100 g or greater. The DC method resulted in a greater reduction in potassium from raw potatoes than the NC method.
Which has more potassium a banana or a potato?
1. Potassium in Potatoes – The humble potato often doesn’t get as much nutrition attention as it deserves. One medium potato delivers 610 mg of potassium, or roughly 17% of the daily value (DV). That’s about 40% more potassium than you’ll find in a banana, which only contains 422 mg, or 9% DV.
Can you eat potatoes on a low potassium diet?
Skip to content Submitted by Fiona Bellefeuille, RD For those of you on a low potassium diet you are likely aware of the high potassium content of potatoes. Over the years, experiments on how to make our potato lower in potassium have led to recommendation for double boiling the potatoes to leach some potassium.
This method will remove about 50% of the potassium from your potato. Unfortunately, a potato with 50% less potassium is still considered a high potassium vegetable. A new study has taken the preparation of potatoes one step further and the good news is that this new method of preparing potatoes can produce a potato with much less potassium, allowing it to become part of a low potassium diet.
Here is what the study investigators found:
- Soaking fresh raw potatoes before cooking does not leach a significant amount of potassium from the potato, so basically, this method is a not worth the time.
- Not discouraged by this finding the investigators decided to see what happens when you soak a potato after cooking. They found that this method allows the potato to leach much more potassium. The size and shape of the cut potato also influenced how much potassium was leached out.
- Cutting potatoes into strips (1.2 cm x 1.2 cm) allowed the most potassium to leach out of the potatoes.
- Dice cutting (2 cm x 2 cm x 2 cm) still produced a fairly low potassium potato after cooking and soaking.
Other findings
- Canned potatoes are lower in potassium than fresh potatoes and when soaked in water they become even lower in potassium.
- Frozen French fries are high in potassium, however when soaked in water before frying they become much lower in potassium.
What about taste and texture? This study also involved taste and texture testing of all products and found all methods produced similar taste and texture. Here are the potassium leaching methods used Fresh potatoes
- Peel the potatoes
- Cut into strips (1.2 cm x 1.2 cm) or dice (2 cm x 2 cm x 2 cm)
- Boil in water (1.5 L) for 8 minutes
- Drain potatoes
- Add clean water (1.5 litres) and soak for 12 hours
- Use as required, e.g.
What part of the potato has the most potassium?
Whole Vs. Peeled – Most of the potassium you get from a potato comes from its flesh. According to USDA data, the flesh of an average-sized baked potato supplies about 145 calories and 610 milligrams of potassium, or 17 percent of the daily value. However, the vegetable’s thin skin is a more concentrated source of nutrients, including potassium.
Is eggs high in potassium?
Frequently Asked Questions –
- How much potassium is in an egg? One large egg contains about 63 mg of potassium. Eggs are considered a low-potassium food, but check with your doctor or dietitian to find out how often you should eat them.
- What meats and fish are best for a low-potassium diet? Beef and most types of fish are usually higher in potassium than chicken, turkey, and tuna. For example, a 3-ounce ground turkey patty has 288 mg of potassium, a 3-ounce serving of canned tuna has 283 mg, a 3-ounce serving of salmon has 387 mg, and a 3-ounce steak has about 360 mg. Your doctor or dietitian can help you decide which to eat and how to watch your portions.
Are carrots high in potassium?
How much potassium do carrots contain? – Carrots contain around 180 mg of potassium per ½ cup, They’re not too high on potassium, but it all depends on the amount you will consume. If you’re snacking on carrots, it’s easy to overdo it and eat too much, thus consuming too much potassium.
Are Carrots High In Potassium? - Is Mango High In Potassium?
As a result, it’s always important to be careful how much food you consume, especially if you have dietary restrictions concerning certain nutrients or minerals. Carrots in all shapes and forms of preparations contain the same amount of potassium except for baby carrots, which are slightly lower in potassium.
- Is Shrimp High In Potassium?
Is broccoli high in potassium?
Broccoli and kidney disease – Broccoli is a medium potassium food, low in sodium and phosphorus, and suitable for all the following kidney conditions and treatments:
- Chronic Kidney Disease (CKD)
- Transplant
- Hemodialysis (3 times/week)
- Daily Home and Nocturnal Hemodialysis
- Peritoneal Dialysis
- Kidney Stones
Can kidney patients eat potato?
Abstract – Objective(s): Despite the nutritional benefits of potato tuber, patients with chronic kidney disease (CKD) should limit the consumption because of its high potassium content. Some culinary treatments have previously been suggested to reduce the final content of this mineral; however, these are either not effective enough or involve very long procedures that affect the final flavor of the food.
The aim of this work was to analyze the effect of culinary treatments on the reduction in potassium content in potatoes, offering new alternatives for minimizing the final content of this mineral to allow the increase of potato intake by patients with CKD. Design and methods: Fresh potatoes, canned potatoes, and frozen french fried potatoes were submitted to three different culinary treatments: soaking, normal cooking, and frying.
7 Potassium Rich Foods : High Potassium Foods
Two types of cut were studied: strips and dice. Initial and final potassium content and % humidity in each cooking treatment applied on the three types of potatoes were analyzed. Potassium content was analyzed using flame photometry. Results: Results show that potato soaking was ineffective for fresh raw potato, while normal cooking achieved insufficient reduction of potassium.
However, when a soaking procedure was applied after normal cooking, it was found to be possible to leach up to 70% of the potassium, to final values of under 130 mg/100 g edible portion in both cut types studied. Subsequent frying did not leach potassium but rather increased potassium content; however, without reaching the 150 mg/100 g edible portion threshold.
Similar results were observed for canned potatoes and frozen french fries. Conclusions: With this new proposed culinary method, the potassium content of potatoes is reduced to an acceptable limit. Additionally, the technique maintains a low-potassium content even after frying potatoes, thus allowing potatoes to be incorporated into the CKD dietary pattern.
Is baked potato high in potassium?
– Potatoes are an excellent source of potassium. Baked potatoes with the skin still on are the best option, as much of a potato’s potassium is in the skin. One medium baked potato with skin contains 941 mg of potassium. By eating a baked potato with salt-free seasoning, a person can avoid extra sodium.
Are mashed potatoes low in potassium?
Potatoes are very high in potassium. Avoid baked potatoes or potatoes cooked in a microwave because all of the potassium stays inside the potatoes. Avoid scalloped and instant mashed potatoes as well as French fries. Peeling, cutting and soaking potatoes in water overnight leaches out some of the potassium.
Can kidney patients eat potatoes?
Abstract – Objective(s): Despite the nutritional benefits of potato tuber, patients with chronic kidney disease (CKD) should limit the consumption because of its high potassium content. Some culinary treatments have previously been suggested to reduce the final content of this mineral; however, these are either not effective enough or involve very long procedures that affect the final flavor of the food.
The aim of this work was to analyze the effect of culinary treatments on the reduction in potassium content in potatoes, offering new alternatives for minimizing the final content of this mineral to allow the increase of potato intake by patients with CKD. Design and methods: Fresh potatoes, canned potatoes, and frozen french fried potatoes were submitted to three different culinary treatments: soaking, normal cooking, and frying.
Two types of cut were studied: strips and dice. Initial and final potassium content and % humidity in each cooking treatment applied on the three types of potatoes were analyzed. Potassium content was analyzed using flame photometry. Results: Results show that potato soaking was ineffective for fresh raw potato, while normal cooking achieved insufficient reduction of potassium.
- However, when a soaking procedure was applied after normal cooking, it was found to be possible to leach up to 70% of the potassium, to final values of under 130 mg/100 g edible portion in both cut types studied.
- Subsequent frying did not leach potassium but rather increased potassium content; however, without reaching the 150 mg/100 g edible portion threshold.
Similar results were observed for canned potatoes and frozen french fries. Conclusions: With this new proposed culinary method, the potassium content of potatoes is reduced to an acceptable limit. Additionally, the technique maintains a low-potassium content even after frying potatoes, thus allowing potatoes to be incorporated into the CKD dietary pattern.
What has more potassium bananas or potatoes?
1. Potassium in Potatoes – The humble potato often doesn’t get as much nutrition attention as it deserves. One medium potato delivers 610 mg of potassium, or roughly 17% of the daily value (DV). That’s about 40% more potassium than you’ll find in a banana, which only contains 422 mg, or 9% DV.
Which potatoes are highest in potassium?
Objective: We sought to determine analytically the potassium content of different varieties of raw potatoes, and to estimate the amount of potassium that can be extracted or leached from raw potatoes by cooking. Design and methods: Six different varieties of fresh potatoes were obtained from the Whole Foods Market in Manhasset, New York.
Two different cooking methods (normal cooking and double cooking ) were applied to each potato. Potassium was extracted from the ash of dried samples. The potassium content of aqueous extractions was ascertained by atomic absorption spectrophotometry. Results: Mean potassium content was highest in the purple Viking potato (448.1 +/- 60.5 mg /100 g ), and lowest in the Idaho potato (295 +/- 15.7 mg /100 g).
All raw potatoes had a mean potassium content of about 300 mg (7.7 mEq)/100 g or greater. The DC method resulted in a greater reduction in potassium from raw potatoes than the NC method. All potatoes retained a mean potassium content greater than 200 mg (5.1 mEq)/100 g, using the NC versus the DC method.