Get back into balance with Potassium

Get back into balance with Potassium

Potassium is the most important dietary electrolyte. We require huge amounts compared to other nutrients. Potassium is necessary for a regular heartbeat and the maintenance of normal blood pressure. It helps regulate the electrolyte balance in our cells, maintain an optimal acidity (pH), and deliver blood glucose into our cells to convert to energy.

We source most of our potassium requirements from our diet. The body is able to absorb potassium from a wide range of foods, especially fruit and vegetables, carbohydrates, and even drinks such as milk, tea and coffee. Almost all of the body’s potassium, up to 98%, is held inside our cells. It works with other electrolytes such as sodium, calcium and magnesium to maintain our electrolyte balance and absorb minerals from the food we eat.

✔️ Regulates normal blood pressure

✔️ Maintains fluid balance in our cells

✔️ Maintain the correct acidity (pH) of our blood and cells.

✔️ Helps convert blood glucose to energy

✔️ Helps the body absorb minerals from food

Doctor taking woman's blood pressure reading.
Potassium is necessary for a regular heartbeat and the maintenance of normal blood pressure.

Sodium and Potassium for balance

The relationship of sodium to potassium is important for your overall health. A low-sodium diet enhances potassium conservation, whereas a high-sodium diet promotes potassium excretion. Studies have shown a connection between high potassium intake and healthier blood pressure. This in turn can help prevent cardiac arrest or the chance of a stroke.

Potassium works with sodium to regulate the flow of nutrients in and out of the trillions of cells in the body. If this flow is thrown out of balance, cells can quickly die and blood pressure is affected and our heart can not function correctly. Numerous studies have shown that a low potassium/high sodium diet plays a role in the development of cancer and cardiovascular disease.

The Recommended Dietary Intakes (RDI) in the USA is much higher than in New Zealand. According to current guidelines, American adults require 4,700mg of potassium, and 1,200mg of sodium daily, or a ratio of nearly four-to-one. However, studies indicate that the average American intake is almost one-to-one, due to excess salt in the diet.

It is estimated that a third of our body and brain energy is used in maintaining the balance of potassium and sodium, controlling water balance and distribution, muscle and nerve cell function, pH balance, and kidney and adrenal function.

Man sitting against gym wall with water bottle after exercise.
When suffering from low energy or fatigue, supplementing with both potassium and magnesium can restore energy levels, often within a few days.

Magnesium and Potassium for energy

These two important electrolytes are important for energy production, and if you are lacking both potassium and magnesium, you may suffer from low energy levels, and in some cases chronic fatigue syndrome.

When suffering from low energy or fatigue, supplementing with both potassium and magnesium can replace lost minerals, achieve optimal balance throughout the body and restore energy levels, often within a few days.

Signs of Potassium deficiency

Some of the warning signs of a potassium deficiency include fatigue, mental confusion, irritability, weakness, headaches, muscle cramps, problems in nerve conduction and muscle contraction and heart disturbances. People with Type 2 diabetes are often low in the mineral.

Potassium is mostly lost through urination. As the body flushes out excess sodium, a large amount potassium goes with it, as the sodium quickly links with potassium during digestion. 

It can also be lost through excessive sweating or vigorous exercise, so it’s helpful to replace and replenish by eating raw fruit or an electrolyte drink during or after a workout.

Excessive fluid loss, and the use of diuretics and laxatives are the most common causes of deficiency. As fluid retention can be a symptom of low potassium status, it may help to supplement with potassium instead of opting for diuretic drugs, but you should of course consult your health professional first before undergoing supplementation.

Sugary drinks and alcohol can also deplete potassium stores. 

Low-carb diets are becoming increasing popular, and if you’re struggling for energy or losing muscle, it may be due to a lack of potassium, which is commonly sourced from carbohydrate-rich fruit and vegetables, as well as other carbohydrates such as bread. 

A diet with plenty of fruits and vegetables and low in sodium should help maintain optimal potassium levels.In a study of vegetarians and non-vegetarians, significantly lower blood pressure was found in vegetarians across every age group. Only 2% of the vegetarians had hypertension, compared to 26% hypertension in the non-vegetarian group. While other factors may be at play, this study shows that obtaining good levels of potassium from a diet rich in fruit and vegetables can play an important role in the regulation of blood pressure and may protect against the development of cardiovascular disease.

Food sources of Potassium

Potassium is found in the cells of a wide variety of plant and and animal foods; meat, milk, fruits, vegetables, grains and legumes.

Leafy green vegetables and fruits that grow on vines such as tomatoes, cucumbers, zucchini, eggplant and pumpkin are the best sources.

Food sources of Potassium: Green leafy green vegetables, tomatoes, cucumbers, eggplant, potatoes and kūmara (sweet potato).
Food sources of Potassium: Green leafy green vegetables, tomatoes, cucumbers, eggplant, potatoes and kūmara (sweet potato).

Root vegetables such as potatoes, kūmara and taro contribute the most potassium in our diets according to the latest New Zealand Nutritional Survey. Milk, coffee, tea and other non-alcoholic drinks also provide good sources in the New Zealand diet.

When boiling vegetables, you can lose up to 50% of the potassium, but this can be retained if the cooking water is consumed.

Aren’t bananas a good source of Potassium?

As brazil nuts are associated with Selenium, bananas are often the first foods to come to mind when thinking about potassium. However, it’s estimated that only 40% of the potassium in a banana is absorbed, due to the lack of chloride in the fruit. This lack of absorption is often not allowed for when estimating mineral intake in food tables. This can explain why potassium chloride is often recommended when looking to supplement, as it helps with absorption.

Bananas on a blue background
Bananas are a good source of potassium but not all of it is absorbed due to the lack of chloride in the fruit.

Supplementing with Potassium

Recommended Dietary Intakes (RDI) in New Zealand are lower than other countries, and range from 2,500mg for young females, to 3,800mg for adult males. As the permitted level of potassium allowed in supplements is only 100mg, it’s important to access as much from your diet as possible by eating plenty of fresh fruit and vegetables and moderating your salt intake.

Many salt substitutes contain potassium chloride as a replacement for the sodium chloride in salt. The potassium content can vary widely, so for those on medication or with kidney disease it’s best to talk with your health care professional before taking salt substitutes because of the risk of hypokalaemia.

When supplementing, do not exceed recommended dosage and keep potassium supplements out of reach of children. People with heart, adrenal gland, kidney disease or should consult with a health care professional before use. Potassium may interfere with some prescription and non-prescription medications such as diuretics so seek advice on what’s best to take and when.

Woman drinking water with Potassium Liquid mineral added.
Recommended Dietary Intakes (RDI) in New Zealand are lower than other countries, and range from 2,500mg for young females, to 3,800mg for adult males.

Summary

As a rule, all of us generally need a lot more potassium in our diets and a lot less sodium. The simplest way of achieving this is eating plenty of fresh fruits and leafy green vegetables and avoiding salty snacks, fast foods, and ready-made cakes and biscuits and other heavily processed options, which contain significant amounts of sodium.

Disclaimer:
The information in this article is not intended as a medical prescription for any disease or illness. Nothing stated here should be considered medical advice. Use as directed. If symptoms persist, consult your healthcare professional. 

Remineralise: Put back what’s missing

Woman drinking water with Skybright Concentrated Mineral Drops added.

Remineralise – and put back what’s missing from our food.

Over the past few months, many of us have taken the chance to evaluate our lifestyle and our health and wellbeing, especially with regard to strengthening our immune system and enhancing our ability to fight off infections during the winter months.

Getting enough sleep, exercising often and eating a balanced, whole-food diet are all important factors in nurturing our health, for both mind and body. But often we’re lacking important minerals, that are not present in either the foods we eat, or in the water we drink. 

This is due to intensive farming techniques, which strip these minerals from the soil in which our food grows. If the minerals are not in the soils in the first place, they will not be present in the plants and therefore in the food we eat. Many of us drink filtered or bottled water, which removes the essential minerals and trace elements we need, as well as unwanted pathogens and toxins that make it safe for drinking.

These practices can lead to mineral deficiencies, which then lead to common complaints such as fatigue, irregular heartbeat, depression, and sleep issues. This also ultimately compromises our immune system, and makes us vulnerable to infections and illnesses.

Skybright Remineralise: we need to put back the minerals and vitamins that are missing from our food.
Remineralise: we need to put back the minerals and vitamins that are missing from our food.

The importance of minerals.

In today’s modern, fast-paced society, supplying our bodies with the minerals they require is difficult. The lives we lead often put increasing demands on our stores of the nutrients. The harder we push ourselves, the more we need. In times of stress, our body uses more vitamin B, vitamin C and magnesium and zinc in particular.

Minerals such as such as magnesium, potassium, iodine and selenium are the catalysts for all the vitamins and other nutrients your body uses for developing and maintaining good health.

Every second of every day the human body relies on these minerals and other trace elements to conduct and generate billions of tiny electrical impulses. Without these impulses, not a single muscle, including your heart, or your brain would be able to function.

Think of your body like a circuit board. Ionic minerals conduct electricity throughout the body, bringing energy where it needs to go in order for each cell and system to work. Without these minerals, your heart couldn’t beat, your muscles couldn’t contract, your brain couldn’t function and your body couldn’t absorb nutrients.

The human body cannot produce minerals like calcium and magnesium as they cannot be made by living organisms. We have to obtain them from the food we eat, or the water we drink. Obtaining them from water is optimal, as it helps with the bioavailability of these minerals, enabling them to be more effectively absorbed into our system. 

“Soil is the basis of all human life and our only hope for a healthy world… all of life will be healthy or unhealthy according to the fertility of the soil”

Dr. Alexis Carrel, winner of the Nobel Prize in Physiology or Medicine

New Zealand soils and mineral deficiencies.

As a country, New Zealand is still very young, and it has young soils. Where once they were rich in nutrients, our agriculture and farming over the years has stripped the topsoil of important trace minerals and elements. 

With the use of common fertilisers, there has been an increase in the growth rate of foods and an increase in yields, but we’ve also seen a steady decline in the nutritional value of the foods we eat over the past decades. This has lead to well-known deficiencies in our soils, including selenium, iodine, zinc, chromium and boron. 

Up to 91% of New Zealanders are said to be deficient in iodine, an essential trace element that supports energy production and plays an important role in supporting immune function. The biggest groups at risk are pregnant mothers and people with autoimmune issues. You can get iodine from seaweed or miso soup or by simply adding sea salt to your drinking water or sprinkling it onto your food. 

Selenium levels are also low in New Zealand soils. It’s estimated that many of us are only getting as little as 10-20% of the daily amount we require. Selenium is an antioxidant and also supports immune system function, as well as reproductive health, mood, thyroid function and cardiovascular health. Often supplementation is required but you can get it from eating beef, fish or a few brazil nuts.

Zinc is an important trace mineral, especially in New Zealand due to soil depletions. It’s a a powerful antioxidant, and great for skin, eye and hair health. Seafood is a rich source of zinc, as well as red meat. Studies suggest that supplementing with zinc may have the potential to improve immunity in the elderly, and in healthy individuals with marginal zinc deficiencies, supplementation can enhance the immune response, and may reduce the length of the common cold.

Producers are paid on the weight of their produce rather than how mineral rich the vegetables and fruit are. The processing of foods, such as peeling, extracting, heat-treating and early picking for storage and transportation across the country can further diminish the nutrient value in the foods we eat.

Until we are able to put trace minerals back into the soil through regenerative agriculture and sustainable farming, we must look to other methods to obtain the full spectrum of minerals and trace elements that we need for optimal human health.

Man holding glass of water.
In our efforts to drink ‘pure water’ this filtration eliminates the harmful substances, but also removes the important trace elements and minerals we need every day.

The water we drink.

Water can and should be a significant source of trace minerals and elements that can maintain our health and wellbeing. 

With concerns about the quality of public water supply in some areas of New Zealand, we often resort to drinking bottled water or filtered water, (reverse osmosis, distilled) which can eliminate virtually every mineral the body requires to maintain good health. In our efforts to drink ‘pure water’ this filtration eliminates the harmful substances, but also removes the important trace elements and minerals we need every day. Reverse osmosis water filters can also harbour harmful bacteria if not adequately maintained.

We need to remineralise.

Eating a plant-rich diet, while essential for good health, isn’t enough on it’s own to provide you with all the minerals and nutrients you need, as modern farming has stripped the soils of its mineral content. This has lead to significant deficiencies across the population which are increasing with our modern lifestyles, added to the prevalence of processed and convenience foods, and an ageing population.

Eat organic and seasonal where you can, eat leafy greens with every meal or at least daily. Grow your own if you have the space at home or shop at local farmers markets to ensure freshness as well as supporting the local producers and economy. 

We are all aware of the need to reduce, reuse and recycle, but with regard to nutrition, we need to rebalance, replenish and remineralise. Minerals and trace elements are vital to our everyday health and wellbeing. We need them to strengthen our immune system, stave off infections and feel more energised.

Adding minerals like sea salt or liquid mineral drops to your drinking water may be the best place to start to feel good and get back into balance. These little changes are easy to implement into your daily routine and can make a big difference to your health.

Disclaimer:
The information in this article is not intended as a medical prescription for any disease or illness. Nothing stated here should be considered medical advice. Use as directed. If symptoms persist, consult your healthcare professional.