How Much Magnesium Is Right For You?

RDA Magnesium Canada – How Many Miligrams Of Magnesium Is Too Much?

Each teaspoon of Natural Calm magnesium delivers 205 mg of magnesium citrate. But to most people, that number means nothing. We’re often asked, ‘How much should I take?’

Well, the answer depends on your unique magnesium needs, how much you’re already getting through diet and how much you deplete every day.

Here, we’ll show you how to do a rough calculation. But remember – it’s not just about the numbers.

Look at Symptoms of Magnesium Deficiency to Determine Needs

Magnesium experts advise looking at symptoms to determine dose. There are many, many symptoms of magnesium deficiency, because magnesium is active in thousands of reactions across systems of the body. Here, we’ll share a short list of the most common symptoms.


* I put a little asterisk beside that first bullet because, let’s face it, many of us have stressful lives, but we don’t all experience stress physically. When we do, it is often because we don’t have enough magnesium (RDA Magnesium Canada). Our bodies churn out hormones in response to stress, and if we don’t have magnesium to moderate those stress hormones at a cellular level, we stay on high-alert – and it takes a physical toll.

Our bodies churn out hormones in response to stress, and if we don’t have magnesium to moderate those stress hormones at a cellular level, we stay on high-alert – and it takes a physical toll.

If you’re experiencing these symptoms, aim to increase the magnesium-rich foods in your diet and through supplementation with highly absorbable magnesium, like Natural Calm.

Consider the Rules of Thumb

How much does the average person need? What is a typical healthy intake of magnesium? It depends on who you ask.

Health Canada gives Recommended Dietary Allowances (RDA) for magnesium:

  • For adult men, the RDA is 400 – 420 milligrams (mg) per day (what you’d get in two teaspoons of Natural Calm).
  • Adult women need 310 – 320 mg/day, unless they are pregnant, in which case adult women should consume about 350 mg/day.

Now, these numbers are based on height and weight averages, generalized across the population.

Dr. Carolyn Dean, a leading expert on magnesium, recommends 3 – 4 mg per pound of bodyweight for adults (not including pregnant and lactating women, who need more).

If you are …

  • 100 pound (lbs), that’s 300 – 400 mg of magnesium
  • 125 lbs, you need 375 – 500 mg
  • 150 lbs, aim for 450 – 600 mg
  • 175 lbs, look for 525 – 700 mg
  • 200 lbs, you’ll need 600 – 800 mg

You can see how by Dr. Dean’s formula, many normal weight adults will need much more than the RDA.

But base requirements aren’t all you need to consider. There are also lifestyle factors that use up magnesium stores and increase our requirements.

Lifestyle Factors that Increase Magnesium Needs

According to Dr. Carolyn Dean, diet, exercise, perspiration, medication and more can deplete the body’s magnesium and/or increase demand for magnesium (RDA Magnesium Canada). Many of these factors are quite common, including:

  • Caffeine
  • Alcohol
  • Certain medications, including diuretics, asthma medications, birth control pills, insulin, digitalis, certain antibiotics
  • Illicit drugs, including cocaine and nicotine
  • Stress
  • Sweat
  • A diet high in animal protein and calcium

Can you check off one or a few of these? Most of us can. That’s why so many people need more magnesium than they might expect.

In the next post, I’ll explain how to supplement if your needs are on the higher end of the spectrum. Look for all your magnesium news here!


Dr. Carolyn Dean, M.D., N.D. The Magnesium Miracle. Revised and Updated in 2014. Ballantine Books, New York.

Health Canada

Magnesium Levels FAQs

When it comes to taking magnesium supplements, you should always ensure that you carefully try to adhere to the RDA for magnesium in Canada. The recommended daily dosage for how much magnesium you should take generally falls around 300mg to 400mg of magnesium per day. With that being said, you can take more magnesium that you actually need – however, excessive overconsumption of magnesium may result in side effects such as diarrhea or nausea.

The RDA (recommended daily average) for magnesium in Canada is approximately 300mg to 400mg per day, which varies depending on your gender, age, and bodyweight. Magnesium is readily available in a number of different foods, meaning that your daily magnesium requirements should be largely met by your diet; however, 65% of Canadians are magnesium deficient and not meeting their magnesium RDA

The recommended daily average guidelines indicate the approximately consumption levels you should be meeting for your diet. These RDAs cover numerous different aspects of your diet and nutrition, including your mineral consumption. For example, the magnesium RDA in Canada usually falls between 300mg and 400mg. Getting less than this minimum can lead to a magnesium deficiency, which approximately 65% of Canadians suffer from.

Your recommended daily allowance details the average daily level of minerals and vitamins you should be getting in your diet. While it might not be appropriate for every person, approximately 98% of people will fit with the recommended daily allowance. For example, the magnesium RDA in Canada is approximately 300mg to 400mg on a daily intake basis. The recommended dietary allowance is the same as the recommended daily allowance.

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