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Monday, July 8, 2024

5 Magnesium Myths To Ignore, From Dietitians


Diet tradition, MLM scams, and social media influencers are serving us deceptive details about so-called “wholesome consuming” left and proper, it appears (not that I am cynical or something). From the myths many people have been advised about meals, like bread and pasta, to dietary supplements, collagen, detoxes, and metabolism—oh my—it is a bizarre time for wellness.

That mentioned, deliberately fueling your physique and practising light diet, or including nutrient-rich meals to your plate, will be useful for a lot of. It’s simply that typically, NutritionTok (for starters) takes it too far. On the menu right now to debunk? The largest myths you could have heard about magnesium and magnesium deficiency, in addition to truths behind them, based on well being consultants.

5 magnesium myths to maneuver on from

Fantasy: Getting magnesium by means of your pores and skin is more practical than oral dietary supplements

Yep, magnesium sprays, flakes, and salt baths exist—however they “aren’t the reply,” says Kelsey Costa, MS, RDN, a registered dietitian and diet guide for the Nationwide Coalition on Healthcare.

“The declare that magnesium absorbed by means of the pores and skin (transdermal) surpasses oral dietary supplements in effectiveness isn’t backed by strong, scientific proof,” Costa says, pointing to a 2017 research in Vitamins that additionally “can not but suggest the applying of transdermal magnesium.” Additional, she believes the hype round this pattern is pushed by advertising campaigns, not science.

Fantasy: Oral dietary supplements are the very best route for getting extra magnesium

Whereas oral dietary supplements will be useful, they’re additionally not essentially the finest route. “A few of the finest magnesium-rich meals are nuts and seeds reminiscent of almonds and cashews, cooked spinach, and baked potatoes with pores and skin,” says Sarah Schlichter, MPH, RDN, a registered dietitian with Vitamin for Operating.

And getting sufficient magnesium is vital to your sleep, intestine well being, and different components of your well being.

“A few of the finest magnesium-rich meals are nuts and seeds reminiscent of almonds and cashews, cooked spinach, and baked potatoes with pores and skin.”
—Sarah Schlichter, MPH, RDN

Fantasy: Everyone seems to be in danger for magnesium deficiency, so we must always all take dietary supplements

To be clear, magnesium is a crucial mineral, and practically half of People eat lower than the estimated common requirement, Costa shares. On the identical time, she believes “it’s not correct to say that everybody is universally poor and requires supplementation.”

Aspect word: Those that have sure persistent sicknesses, take sure medicines, don’t eat many magnesium-rich meals (like darkish leafy greens, complete grains, nuts, and legumes), and who drink closely are at a larger danger of deficiency, Costa provides, referencing the research linked above in addition to one in Open Coronary heart. Some examples of these medicines embody diuretics, chemotherapy medication, and aminoglycoside antibiotics.

Sadly, testing may not all the time provide the proper reply on whether or not you’re poor, both. “Routine blood exams might not all the time replicate an correct magnesium standing because the mineral is especially saved in tissues and bones, and sure kinds of deficiency should still present regular blood ranges,” Costa explains.

Fantasy: Physique odor is an indication of magnesium deficiency

These two merely shouldn’t be equated, based on Schlichter.

Jaclyn London, RD, a registered dietitian, agrees. She posted a duet on TikTok with one other creator who claimed her physique odor signaled she was poor in magnesium. Additional, the creator made a magnesium water spray to make use of as a substitute of “cancer-causing deodorant” (*cough cough* one other fable!).

@jaclynlondon #duet with @Ali is Toxin Free #magnesium PLEASE DON’T fall for loopy 💩like this!! (And should you don’t odor nice right now, effectively…possibly let’s simply begin with a smart bathe & see the place we land.???) Right here’s the deal: You’re most likely NOT magnesium poor. Right here’s why 👇 •Insufficient consumption of magnesium is quite common— >50% of U.S. adults aren’t getting sufficient (PMID: 29387426)… •…however signs of acute magnesium DEFICIENCY are literally fairly uncommon. That’s b/c our our bodies retailer magnesium in bones & delicate tissue cells (about 25g), & &lt1% of complete physique magnesium is saved in blood serum ranges which are tightly regulated by your kidneys. In different phrases: Even in case you have low magnesium ranges on a blood check, that doesn’t let you know a lot about your physique’s personal complete magnesium standing (since a blood check is just measuring that 1% serum magnesium). •For many usually wholesome individuals: Sustaining magnesium homeostasis=your kidneys will naturally excrete much less urine if/when serum magnesium is tremendous low, as they do in response to low ranges of all electrolytes (together with sodium, potassium, & chloride). •Signs of precise, acute magnesium deficiency are extraordinarily severe, & embody lack of urge for food, nausea, vomiting, fatigue, & weak spot, & can progress into numbness, tingling, muscle cramps/contractions, & irregular coronary heart rhythms. It will possibly additionally trigger different extreme mineral deficiencies (potassium,, calcium), since your physique’s attempting to manage/set up regular electrolyte ranges in your blood stream. •Individuals in danger= anybody who’s skilled extreme GI losses because of persistent circumstances (Crohn’s, Celiac Illness); ppl w/ sort 2 DM, older adults, & ppl w/ persistent alcohol dependence. Backside line: Regardless of what’s all around the web, I’m actually not involved you’re in danger for extreme magnesium deficiency— it’s unlikely at finest. HOWEVER… •Chances are you’ll be in danger for magnesium inadequacy because of not consuming sufficient magnesium-rich meals. Since this may enhance your danger of persistent illness reminiscent of hypertension, diabetes, & osteoporosis, right here’s the place I’d recommend you begin: 🥑Eat extra leafy greens; nuts & seeds; peanuts & legumes; seafood & 100% whole-grains— DM me if you would like a extra particular listing of excessive Mg meals 🥑In the event you’re nonetheless involved you’re not getting sufficient: Seek the advice of your PCP earlier than you go complement purchasing, please! 🥑Select a dietary complement that meets your wants/way of life, & is third-party examined for ingredient verification & security. 👉Any questions? LMK within the feedback 👉Comply with for extra diet suggestions, meals product picks & wellness myth-busting 👉Save & share w/ somebody who wants to listen to this #dietitian #magnesiumdeficiency #mythbusting #dietmyths #dietmythsdebunked #nutritionmyths #nutrientdeficiency #foodfirst ♬ once more – floreaudios

Within the caption, London additionally clarified that whereas an insufficient consumption of magnesium is widespread, an precise deficiency is uncommon.

Schlichter provides extra typical signs of magnesium deficiency are fatigue, nausea, weak spot, and lack of urge for food.

Fantasy: Consuming an excessive amount of magnesium-rich meals can result in toxicity and severe well being issues

This fable has a caveat, like a number of the others. “Whereas it’s doable to eat an excessive amount of magnesium, it’s extremely unlikely by means of weight loss program alone,” Costa says. “The kidneys are environment friendly at regulating ranges of magnesium within the physique, and extra quantities are excreted in urine.”

That mentioned, should you do take dietary supplements, watch out—and all the time seek the advice of a medical skilled previous to beginning any new complement routine. “Giant doses of magnesium, particularly in quantities exceeding 350 milligrams per day, can doubtlessly result in dangerous penalties,” Costa provides. A few of the penalties she notes are irregular heartbeat, low blood strain, confusion, and different circumstances that may be deadly.

All of this comes right down to a few core messages: Each individual’s physique is completely different with numerous wants, and think about pondering twice whenever you learn well being recommendation on social media—particularly if it’s connected to a product.


Effectively+Good articles reference scientific, dependable, current, strong research to again up the data we share. You may belief us alongside your wellness journey.


  1. Gröber, Uwe et al. “Fantasy or Actuality-Transdermal Magnesium?.” Vitamins vol. 9,8 813. 28 Jul. 2017, doi:10.3390/nu9080813

  2. DiNicolantonio JJ, O’Keefe JH, Wilson W Subclinical magnesium deficiency: a principal driver of heart problems and a public well being disaster Open Coronary heart 2018;5:e000668. doi: 10.1136/openhrt-2017-000668




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