Nutrition

Best Magnesium Supplements For Keto and Low Carb

Your battle to succeed on the Keto diet can fail miserably if you lack enough magnesium.

But why your probably asking?

Well in short many foods that are rich in magnesium are also high in carbohydrates, such as beans and fruits for example.

So stick around I will reveal the best magnesium supplements so you can address that problem. But Before we move on I wanted to tell about the coveted top 10 list of safe weight loss supplements. I advise you to read that first it will virtually guarantee you success regardless of being on a diet or not. Just click on the link below.

To make sure you are getting enough magnesium to ward off “keto flu” and other issues you may want to consider using a magnesium supplement.

Here is a list of the best magnesium supplements available for keto, as well as some commonly asked questions.

What Is Magnesium And Why Is It Needed?

Magnesium is the fourth most abundant mineral in your body, with an adult body containing around 25 grams of this mineral. Around 50-60% of it is found in your bones, with the remaining amount found in your soft tissue, red blood cells and serum [1].

It is used for several important bodily functions that include:

  • Helps maintain normal muscle and nerve function
  • Will keep your immune system healthy
  • Maintains a normal heart rhythm
  • Helps to build strong bones

Magnesium is involved in over 300 different biochemical reactions in your body and is used to help generate and use ATP. This is the main unit of energy found in the cells of your body [2].

What Happens If You Have Low Magnesium Levels?

There are a few things that happen when you have low magnesium levels.

For a start you may encounter the following symptoms:

  • Loss of appetite
  • Nausea
  • Fatigue
  • Weakness
  • Constipation
  • Risk of vomiting
  • Muscle cramps
  • Abnormal heart palpitations

Research has found that chronically low levels of magnesium are linked with an increased risk of death from all causes [3]. It also increases the risk of developing the following conditions:

  • Alzheimer’s disease
  • Insulin resistance and type-2 diabetes
  • Migraine/headaches
  • Attention deficit hyperactivity disorder (ADHD)
  • Depression
  • Osteoporosis
  • Asthma
  • Hypertension (high blood pressure)
  • Cardiovascular disease
  • Stroke
  • Sudden cardiac death

Do Magnesium Supplements Work?

Yes, if you are deficient in magnesium then supplementing will increase your daily intake.

If you have just started the keto diet and after a few weeks of the diet you are starting to experience muscle cramps or soreness then you may suspect that your body is lacking magnesium.

You may want to start using a supplement alongside your normal diet in this case.

Potential Side Effects Of Magnesium Supplements

Too much magnesium can increase the risk of developing side effects that may include mild symptoms such as:

  • An upset stomach
  • Abdominal cramping
  • Nausea
  • Diarrhea

More severe side effects may also occur in rare cases. These side effects include:

  • Magnesium toxicity called hypermagnesemia
  • Hypotension
  • Depression
  • Lethargy and muscle weakness
  • Difficulty breathing
  • Extreme hypotension
  • Irregular heartbeat
  • Cardiac arrest

The symptoms are more commonly found in the oxide and chloride types of supplements. This is because they have lower absorption rates.

If you do encounter any stomach problems you may want to try switching to an alternative, such as magnesium glycinate or malate as they have less of an impact on your gut.

Milk of magnesia is also an option, especially if you are suffering from cramping or constipation. It may have more than the RDA but as it comes in liquid form, any excess will be excreted so it is unlikely to cause harm.

I would always suggest speaking to your doctor before you decide to start using any new supplement. This is to ensure it is safe for you to do so, and that you won’t experience any unwanted reactions.

FAQs

Why Is Magnesium Good For The Keto Diet?

Magnesium is good for the keto diet as when you first start a low carb diet you may encounter symptoms of “keto flu”. These symptoms include:

  • Fatigue
  • Headaches
  • Nausea
  • Drowsiness
  • Lightheadedness
  • Constipation
  • Skin problems
  • Muscle cramps
  • Hypertension

There may be many different reasons why you may encounter these symptoms, but one of the suggested reasons is a lack of magnesium in your diet.

You will start to lose a lot of water during the first few weeks of a low carb diet. As glycogen is stored in your body as one-part glycogen and three parts water, this will mean that more water is excreted through your kidneys.

Your kidneys control your magnesium levels, so increasing the amount of water excreted will also result in an increase in magnesium excreted too. Resulting in low magnesium levels.

What Kind Of Magnesium Should I Take For Keto?

You will not find pure magnesium on its own in supplement form, this is because it needs to bind with another ingredient to remain stable.

It is for this reason why there are so many different supplements available. The magnesium element is the same in every supplement, it is the binding molecule that will be different.

The following are some of the more popular types of magnesium supplement available:

Magnesium Chelates: This type of supplement combines magnesium with amino acids, which are the building blocks of protein.

These amino acids help your body to absorb the minerals before any of its negative side effects are experienced. They are the most bioavailable of all magnesium supplements and you will experience fewer side effects when used.

The main issue with chelates is that they are difficult to manufacturer so they are likely to be the most expensive supplement to buy.

The most popular magnesium chelates supplements are:

  • Magnesium glycinate – This variety is bound with glycine. It is highly bioavailable and will help to promote relaxation and may aid your sleep quality [4]. Of all the forms of magnesium, this is the least harsh.
  • Magnesium l-threonate – For this variety, magnesium is bound to l-threonate, which is a sugar acid found in capers, huckleberries, and pecans. L-threonate may support brain health, reduce migraines and headaches, may improve your memory, and may reduce the risk of developing both dementia and Parkinson’s disease.
  • Magnesium malate – This is bound with malic acid that is found in oranges, apples, and pears. Malic acid is used by your cells to produce and use energy. It can also help relax tense muscles and may relieve the pain experienced by those who suffer from fibromyalgia [5].
  • Magnesium orotate – This particular variety is magnesium bound with orotic acid. Research has suggested that it may improve athletic performance [6]. It has also been shown to reduce high blood pressure, and increase the survival rate of those who have suffered a heart attack [7].
  • Magnesium taurate – This variety is magnesium bound with the amino acid taurine. It has been shown to help patients with heart disease to improve exercise capacity [8], plus has been shown to prevent heart disease [9].
  • Magnesium aspartate – This is magnesium that is bound to aspartic acid. Research has shown that this particular type could destroy brain cells and impair your memory [10], so perhaps it should be avoided.

Magnesium Citrate: Magnesium citrate is magnesium that has been bound to citric acid. It is the most common variety.

As it is so common it is widely available and is affordable.

Even though it offers numerous benefits, including the ability to help your tense muscles to relax, and to combat nighttime leg cramps [11], it may cause diarrhea due to it being a mild laxative.

Magnesium Oxide: Magnesium oxide is a combination of magnesium and oxygen. It has the highest concentration of elemental magnesium but is one of the least bioavailable forms [12].

As it cannot be absorbed easily it will be excreted quickly, which is why its laxative properties are put to use in products such as milk of magnesia, a common treatment for constipation.

Magnesium Sulfate: This is more commonly known as Epsom salts that when added to water can help to relieve muscle tension, aches, and pains.

Some people swear by its benefits, but scientific research is thin on the ground.

What is known is that you should avoid consuming this orally as it can lead to a laxative effect occurring.

Magnesium Chloride: When this is mixed with water, coconut oil, or Shea butter it will create magnesium oil that can be rubbed into your skin to relieve cramping muscles and to target pain [13].

How Much Magnesium And Potassium Should I Take On Keto?

If you are on the keto diet I would suggest trying to consume between 200-400 mg of magnesium every day, either through your diet or in supplement form.

For potassium, I would suggest aiming for between 3000-4000 mg daily. The World Health Organisation (WHO) recommends that consume 3,510 mg per day [14]. Potassium offers numerous health benefits and can help support your blood pressure, cardiovascular health, bone strength, and muscle strength [15].

Should Magnesium Be Taken At Night?

Magnesium can be taken at any time of the day, as long as you are able to take them consistently.

Some of you may prefer to take them in the morning, or later on during the day. What I would suggest is to follow the recommendations on whichever supplement you choose to use.

What Medications Should You Not Take With Magnesium?

There are certain medications you should not take with magnesium. These include:

  • Aminoglycoside antibiotics. Certain antibiotics can affect your muscles. Magnesium can also have an effect on your muscles, so combining the two may cause muscle problems.
  • Quinolone antibiotics. Magnesium can reduce the number of antibiotics your body absorbs, therefore can reduce its effectiveness. It is advised to take antibiotics at least 2 hours before magnesium, or 4-5 hours after.
  • Tetracycline antibiotics. Magnesium can attach itself to the tetracyclines found in your stomach, which reduces the number of tetracyclines your body can absorb.
  • Bisphosphonates. These are a type of drug used to prevent the loss of bone density, often used to treat osteoporosis. Magnesium reduces the amount you can absorb, reducing its effectiveness.
  • Medication for high blood pressure. Magnesium can lower your blood pressure, which is also the aim of medications for high blood pressure. Combining the two could cause your blood pressure to fall too low.
  • Muscle relaxants. Magnesium may relax your muscles too, so combining the two may lead to an increased risk of side effects.
  • Diuretics. Certain diuretics may result in too much magnesium being present in your body.

What Food Is Highest In Magnesium?

There are a few foods [16] you should eat that are both high in magnesium and will be suitable for a keto diet. These include:

  1. Nuts and seeds. These are a good source of healthy fats and protein, as well as magnesium. A 28 gram serving of almonds will provide you with 76 mg of magnesium (18% RDA), with cashew nuts providing 83 mg (21% RDA). Hemp seeds are a good source of magnesium with 170 mg (43% RDA) found in each serving.
  2. Dark leafy greens. Spinach, kale, chard, and collard greens are all packed with nutrients that include magnesium. A 144 g serving will provide you with 110-130 mg of magnesium (25-30% RDA).
  3. Fatty fish. As well as being a good source of protein and vitamin D. Certain types of fish, such as mackerel, salmon, sea bream, and halibut are also a good source of magnesium. Depending on the type of fish, a 5-ounce serving could provide as much as 110 mg (28% RDA) of this important nutrient.
  4. Dark chocolate. This should be eaten in moderation as too much can add too many carbs to your diet. A 28 g serving will provide up to 65 mg of magnesium, although I would limit your intake to just 1-2 squares a day.
  5. Avocado. They are full of heart-healthy monounsaturated fats and are low in carbs, which makes them perfect for the keto diet. Avocados are also a rich source of magnesium with a 150-gram avocado providing 44 mg of this nutrient. That’s 11% of your RDA.

Other foods you may want to consider adding to your diet include crab meat, okra, coconut milk, chicken, zucchini, beef, turkey, liver, wild game, tuna, and whitefish.

What Is A Sign Of Low Magnesium In The Body?

The signs of low magnesium in the body are the following symptoms:

  • Muscle spasms
  • Heart palpitations
  • Low blood pressure
  • Sleep problems
  • Muscle cramps
  • Anxiety
  • Headaches
  • Nausea

Research has found that long-term health conditions like cardiovascular disease and depression have been linked with low magnesium levels [17].

Top 5 Magnesium Supplements For Keto

1. NOW KETO + Electrolytes

Made with a host of beneficial ingredients that include vitamin D, vitamin B6, calcium, manganese, chloride, sodium, potassium, l-leucine, l-tyrosine and not forgetting magnesium (magnesium citrate).

This supplement has been created to support fast hydration, helping athletes of all levels with rehydration and recovery. It also offers the following benefits:

  • Lower heat stress
  • Less nausea
  • Helps reduce fatigue
  • Reduces muscle cramping
  • Supports higher energy levels

Its formula is low in carbs and completely safe for those on the keto diet, plus it is suitable for vegetarians and is GMO-free too.

2. Nature’s Bounty Magnesium

Each tablet of Nature’s Bounty contains 500 milligrams of magnesium oxide at an affordable price.

These tablets offer optimal support for your bone health and the health of your muscles. This is particularly important for older people as they tend to suffer from both bone and muscle problems.

To ensure the tablets are easily swallowed they are coated. No artificial flavors or sweeteners are present, and the tablets themselves are gluten-free.

These magnesium tablets have undergone numerous quality tests to check the purity and potency of the product. With scientists and various experts checking to ensure the ingredients all meet the required GMP quality standards.

3. Sundown Naturals Magnesium

A single capsule of Sundown Naturals Magnesium will provide you with your recommended daily intake of magnesium, with 500 mg found in each one.

The type of magnesium found in this supplement is magnesium oxide, which helps increase bone hardness and strength. It is also essential of supporting healthy muscle and nerve health.

This product is safe for vegetarians, is free from gluten and GMO too.

4. Vitafusion Magnesium Gummies

If you struggle to take tablets or capsules but wish to increase your daily intake of magnesium then you may want to try these magnesium gummies.

While the dosage is lower than some of the other supplements found on this list it still provides enough (165 mg found in the recommended serving size of 2) when combined with a healthy diet.

The gummies themselves have a natural tropical citrus flavor, which makes them easy to consume.

5. Country Life Target-Mins

These are not just magnesium tablets, this supplement also contains calcium and potassium too.

It is claimed that using this supplement alongside a healthy diet will help to support your cardiovascular health and may reduce the risk of osteoporosis later on in life.

All Country Life supplements are made using the highest quality ingredients, with no yeast, corn, wheat, milk, sugar, preservatives, or artificial colors, flavors or sweeteners, and are manufactured in an NSF-GMP compliant and USDA Organic certified manufacturing facility.

Final Thoughts

When you first start the keto diet it is common for you to experience symptoms associated with “keto flu”.

It is likely that these symptoms are a result of a lack of magnesium in your diet. To alleviate these issues you should look to your diet first of all. Are there any foods you could add to your diet that could increase your intake of magnesium?

You may also want to consider using a magnesium supplement. We have listed some of the better options available on the market. I would suggest you give them a closer look.

1) Magnesium Basics

2) Introduction: Importance of Mg in Physiology and Medicine and the Need for Ion Selective Electrodes

3) Serum magnesium concentrations and all-cause, cardiovascular, and cancer mortality among U.S. adults

4) Glycine ingestion improves subjective sleep quality in human volunteers, correlating with polysomnographic changes

5) Treatment of Fibromyalgia Syndrome With Super Malic: A Randomized, Double Blind, Placebo Controlled, Crossover Pilot Study

6) On the Significance of Magnesium in Extreme Physical Stress

7) Meta-analysis of clinical trials of cardiovascular effects of magnesium orotate

8) Effect of Taurine Supplementation on Exercise Capacity of Patients With Heart Failure

9) Taurine and magnesium supplementation enhances the function of endothelial progenitor cells through antioxidation in healthy men and spontaneously hypertensive rats

10) Brain Damage in Mice From Voluntary Ingestion of Glutamate and Aspartate

11) Randomised, cross-over, placebo controlled trial of magnesium citrate in the treatment of chronic persistent leg cramps

12) Magnesium bioavailability from magnesium citrate and magnesium oxide

13) Effects of Transdermal Magnesium Chloride on Quality of Life for Patients With Fibromyalgia

14) Potassium intake for adults and children

15) Potassium Fact Sheet for Health Professionals

16) FoodData Central

17) Dietary Magnesium and Cardiovascular Disease

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