February 8, 2023

Low Potassium (LK) Diet and Kidney Disease dietary video created by the NHSGGC renal dietitians.

This video is going to explain the importance of keeping potassium at a safe level in your blood it will show how cooking methods can lower the potassium content of foods and will give you an example of fruit and vegetable portion sizes potassium is a mineral involved in muscle movement and contraction when kidney function is reduced it will lose the ability to

Filter off the extra potassium in your blood consequently the blood potassium level will go above normal not everyone will reduce kidney function has issues with potassium and it will depend on your blood results your target blood potassium range depends on whether you are having renal replacement therapy or not your need to follow a low potassium diet can change

Along your ckd journey it’s important to have as balanced and varied a diet as possible a low potassium diet is defined as a diet containing 50 to 70 millimoles of potassium per day this table shows the minimal amount of daily potassium intake from our staple diet when blood potassium increases above the normal level it can cause the muscles to contract in an

Abnormal way which is called a cramp as our heart is made of muscle high blood potassium can cause irregular heartbeats there are several causes of raised blood potassium levels dietary potassium intake is only one of them when you have a raised potassium blood result you may be asked to repeat a blood test to confirm that the reading was correct if you are on

Certain blood pressure medications diuretics or immunosuppressants your doctor may advise you to adjust the dose or temporarily stop taking them metabolic causes of elevated blood potassium can be due to poor blood sugar control and acid-base imbalance your doctor may start you in a medication called sodium bicarbonate to neutralize your blood acidity and lower

Your blood potassium reading other causes of high blood potassium are dehydration infection weight loss constipation and inadequate dialysis meanwhile your doctor and specialist nurses will refer you to see a renal dietitian and find out how to modify your diet sometimes simply changing your dietary potassium intake can improve your blood potassium within

Two to three days if you are at risk of hyperkalemia you are encouraged to follow the low potassium diet your renal dietitian will take a diet history from you to find out the portion sizes and frequency of certain food consumption based on the following your dietitian will recommend you to modify your diet and change your cooking methods if needed you’ll be

Encouraged to avoid some less nutritious high potassium food such as chocolate crisps beer and chips fruit and vegetables are high in potassium however our body does not absorb potassium from them efficiently therefore you don’t need to completely stop eating some of your favorite fruit and vegetables your dietitian can advise you on the types of high potassium

Fruit and vegetables to avoid and give you further advice about frequency and portion sizes suitable for you at the end of this video we will show you what a portion of roots should look like it is difficult to give a precise answer to this question as daily potassium allowance depends on your residual renal function residual renal function means how well your

Own kidneys manage to get rid of the waste products as potassium is a mineral stored in the muscles the amount of daily potassium allowance varies depending on the muscle mass of the individual generally speaking the bigger the person the more potassium is allowed as a rule of thumb the maximum daily potassium allowance for someone who has no urine output or very

Limited renal function will be calculated based on their ideal body weight like this potatoes are part of a staple diet in the uk in order to reduce the potassium content of them you are recommended to peel and cut them into smaller pieces then boil the potatoes in lots of water and strain then add them into other cooking such as stew curry shepherd’s pie and

Samosa remember to discard the water after boiling the potato you can cut them into chips parboil and then freeze for future use boiling the potatoes can significantly reduce the potassium content of them please be aware boiling too many potatoes in a small pot or the whole potato in a small amount of water are not efficient ways to reduce the potassium content

Of them other cooking methods such as roasting baking deep frying microwaving and steam cooking will not remove the potassium from the potato potato powder ready-made mashed potato and frozen paradox are all high in potassium if you’re going out for meals you can try to choose rice pasta and noodles or bread-based meals as they are lower in potassium content

Let’s look at two meal plans and compare their potassium content breakfast all brand cereal with milk and a tablespoon full of raisins a cup of cappuccino and a banana a glass of orange juice with a cereal bar containing nuts and dried fruit as a snack jacket potato with baked beans and a bowl of cream tomato soup for lunch a package of potato crisps with a cup

Of coffee for snack a slice of steak with chips for dinner with rhubarb crumble and custard as dessert a slice of melon for supper the total potassium content of this diet is 187 millimoles let’s look at another diet two meter picks with milk a cup of tea and a slice of toast with jam for breakfast two plain biscuits with diluted squash and an apple for snack

Macaroni cheese with salad and a glass of lemonade for lunch a donut with a cup of tea for snack beef stew with parboiled potatoes and apple crumble with custard for dinner and a slice of toast with jam for supper the total potassium content of this diet is 62.7 millimoles tomatoes are high in potassium you can have a few slices of tomato in your sandwich three

To four cherry tomatoes in your salad or a plum sized tomato occasionally please avoid tomato juice or cream tomato soup as you may consume two to three tomatoes per serving you can still use 10 tomatoes in cooking as long as per portion of your meal you are consuming one plum sized tomato only if you are using tomato puree or paste please make sure you only

Use half a teaspoonful per individual portion please be aware tomato ketchup contains potassium too other high potassium vegetables include spinach mushrooms okra and choy sam a few leaves of spinach and salad are fine but please avoid cooked spinach as you may over consume potassium in a small portion for mushrooms and try some please keep to the portion

As you see here per meal you’re recommended to try tinned okra instead of fresh okra brussels sprouts aubergine and sweet potato are all high in potassium you’re encouraged to eat them occasionally those portion sizes per meal shown here avocado and rhubarb should not be consumed regularly as they are high in potassium you can still have some fresh vegetables a

Small salad usually contains about 10 millimoles of potassium fruits are very good sources of vitamins and minerals as long as your blood potassium is within target you should keep at least one portion of fruit per day here are some examples of one portion of fruit they all contain similar amounts of potassium the easiest way to remember the portion size of

A fruit is to imagine a portion of fruit as a small apple fruits which are high in potassium such as oranges watermelon mango or grates proportion should look smaller than an apple please avoid dried fruit fresh fruit juice and vegetable juice milk contains potassium too but it is a good source of high quality protein and calcium usually you are recommended to

Limit milk intake to half a pint a day remember potassium content of full cream semi-skimmed and skimmed milk are very similar dried milk powder evaporated milk condensed milk and coffee meat all contain potassium over-the-counter milkshake supplements are usually high in potassium if you need nutritional supplements please contact your gp renal consultants or

Specialist nurses to refer you to see a renal dietitian you may also come across different kinds of milk substitutes potassium content of plant-based milks can vary between brands it can range from 0.5 to 5.6 millimoles of potassium per 300 milliliters you can discuss with your dietitian and decide whether they are beneficial for you coffee is high in potassium

Tea contains less potassium per cup cocoa molted milk drinks botherle and high juice are high in potassium alcohol such as beer cider and wine are made from barley apple and grapes they all contain potassium the general rule is the darker the beer the higher the potassium content whiskey and spirits are low in potassium potassium additives are more bioavailable

Than potassium found in whole foods our bodies can absorb the potassium from the additive more efficiently than from the natural sources that means food labeled reduced salt may be high in potassium you’re encouraged to choose less processed food and use a small amount of normal sea salt in cooking instead of using salt substitutes such as low salt chocolate is

High in potassium please avoid excessive intake you can try half coated chocolate biscuits other snacks such as boiled sweets mints marshmallows turkish delight popcorn and chewing gum are low in potassium here are some low potassium snack alternatives dietary potassium allowance depends on the blood potassium level as mentioned before many factors affect blood

Potassium level such as reduction in appetite vomiting and diarrhea certain change of medication and starting renal replacement therapy you may be advised to eat more or less potassium-rich food depending on your blood results your renal dietitian will advise you when and how to adjust your intake so as to keep your blood potassium within normal range if you would

Like further information about traditional diets please contact your dietitian you

Transcribed from video
Low Potassium (LK) Diet and Kidney Disease By NHS Greater Glasgow and Clyde