Study analysis · Foods · 2020
One jar of pink salt could be poisoning you — here's the shocking truth.
Pink salt isn't healthier than regular salt — you'd need to eat six teaspoons a day to get any extra minerals, and one sample had dangerous levels of lead.
Overview
What the study found
The study in plain English — the bottom line, every takeaway we extracted, and what to do with them.
In simple terms
This study just looked at what’s inside different pink salts you can buy in stores—it didn’t test if they make people healthier or sicker. It found some minerals in them, but not enough to matter, and one had too much lead. So it tells us what’s in the salt, not what the salt does to your body.
What’s the bottom line?
Scientists tested pink salt sold in Australia to see if it had more good minerals than regular salt.
How strong is this study?
The scientists used fancy machines to measure the minerals accurately, which is good. But they only checked a few salts from a few stores, and didn’t test each one more than once. So we can trust what they found in those samples, but we can’t be sure it’s true for all pink salt everywhere.
0 / 100
- COI disclosureconflicts of interest not disclosed
- Data availabilitydata not shared
- Code availabilitycode not shared
22 / 100
- Randomizationnot randomized
- Blindingblinding unclear
- Control group+15/15
- Sample size (n=32)+3.0/20
- Follow-upno follow-up reported
100 / 100
54 / 100
- P-values+15/15
- Effect size+20/20
- Confidence intervalsno confidence intervals
- Pre-registrationnot pre-registered
Each component is scored out of 100 and then capped by the study design — a case series cannot reach the ceiling a randomised trial can, however well it is reported.
Where it sits
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 541 / 100
Probability of being correct
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
This design cannot establish causation — the findings describe an association, not a cause. This is a cross-sectional study that measures mineral content in existing salt products without manipulating variables or controlling for confounders; it cannot establish cause-effect relationships because it observes naturally occurring variation without experimental control.
Key takeaways
- 01
Pink salt had tiny amounts of extra minerals like iron and magnesium, but you’d need to eat over 6 teaspoons a day to notice any benefit—way more than the 1 teaspoon doctors recommend.
- 02
One sample had too much lead.
- 03
No, the extra minerals aren’t meaningful because you’d have to eat dangerously too much salt to get them, and too much salt harms your heart and blood pressure.
Surprising findings
- One single sample from Peru had lead levels 30% above the legal limit, while all other 30 samples were within range.People assume contamination is widespread if it exists — but this shows it’s highly variable and possibly due to a single bad batch, making regulation even more critical.
- Pink salt had lower sodium than white salt — but not enough to matter.It’s counterintuitive that a 'healthier' salt would have less sodium, but the difference was tiny (394,717 mg/kg vs. 427,636 mg/kg) and irrelevant because you’d still hit the sodium limit with just 5g.
Practical takeaways
Stick to the 5g (1 tsp) daily salt limit — whether it’s pink, Himalayan, or table salt.
The study only tested Australian retail samples — pink salt from other countries may have different contamination levels.
high confidenceIf you love pink salt’s color, use it sparingly as a garnish — not as your daily cooking salt.
Don’t assume darker color = more nutrients; it may mean more toxins.
medium confidenceCheck the origin label — avoid pink salt from regions with known industrial pollution (e.g., Peru, parts of South Asia).
There’s no public database to verify salt origin or contamination — this study is one of the few to test it.
low confidenceWhy this study matters
Lead in Pink Salt Exceeds Safety Limits
One pink salt sample from Peru contained 2.59 mg/kg of lead — exceeding Australia’s maximum safety limit of 2 mg/kg. That’s 130 times more lead than the iodized white salt control.
People buy pink salt thinking it’s natural and healthy, but this shows it can contain toxic heavy metals that harm the brain, kidneys, and heart — even in tiny amounts.
You’d Need 6 Teaspoons Just to Get 'Benefits'
To get meaningful amounts of calcium, magnesium, or iron from pink salt, you’d need to consume over 30 grams per day — about six teaspoons. But the daily sodium limit is just 5 grams.
It’s a classic case of 'the cure is worse than the disease' — the amount needed to gain nutrients would massively exceed safe sodium intake and raise blood pressure risks.
Darker Pink = More Minerals (and More Toxins)
Darker pink salts had significantly higher levels of calcium, potassium, aluminum, silicon, and barium — but also more lead and other non-nutritive minerals. Color intensity was linked to contamination risk.
The very thing that makes pink salt look 'natural' and premium — its deep color — is caused by iron oxide and soil impurities that may include toxic metals.
Himalayan Salt Isn’t Always Better
While Himalayan salt had higher iron and potassium, it also had more aluminum and silicon. The single Peruvian sample with dangerous lead levels was the only non-Himalayan one tested.
Marketing claims about Himalayan salt being 'pure' or 'ancient' are misleading — origin doesn’t guarantee safety, and contamination varies wildly even within the same region.
Want the whole report?
Detailed mode opens the full scientific breakdown — every score component, the methodology, conflicts of interest, the evidence analysis behind each claim, and the raw study data.
Overview
What the study found
The study in plain English — the bottom line, every takeaway we extracted, and what to do with them.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tested pink salt sold in Australia to see if it had more good minerals than regular salt.
Research results
Pink salt had tiny amounts of extra minerals like iron and magnesium, but you’d need to eat over 6 teaspoons a day to notice any benefit—way more than the 1 teaspoon doctors recommend. One sample had too much lead.
What this means - more context
No, the extra minerals aren’t meaningful because you’d have to eat dangerously too much salt to get them, and too much salt harms your heart and blood pressure.
This study evaluated the mineral composition of pink salt available in Australia to assess its nutritional value and public health implications, particularly regarding contaminant risks.
Pink salt showed wide variation in mineral content, with higher levels of some nutrients (calcium, magnesium, iron, potassium) and non-nutritive minerals (aluminum, silicon, barium) compared to iodized white salt, but one sample from Peru exceeded safe lead limits (>2 mg/kg). Consuming enough pink salt to gain nutritional benefits would require >30 g/day—far exceeding safe sodium limits.
Methods Used
31 pink salt samples and 1 iodized white salt control were purchased from Australian retailers and analyzed using ICP-MS mass spectrometry to measure 25 minerals. Samples were categorized by color, form, and origin; statistical tests (ANOVA, t-tests) assessed differences.
Main Finding
One pink salt sample from Peru contained lead at 2.59 mg/kg, exceeding Australia’s maximum contaminant level of 2 mg/kg. While pink salt had higher levels of some nutrients, 5 g (1 tsp) contributed negligibly to daily intake except for sodium, which met the recommended limit. Meaningful nutrient gains would require >30 g/day, posing severe sodium risks.
Confidence Level
Moderate. The study used validated mass spectrometry and appropriate statistical tests, but sample size was small (n=31), flake salt samples were limited (n=2), and color coding was subjective. One contaminant result (lead) was based on a single sample.
Study Flags
Red Flags
- •Single sample exceeded lead safety limit (n=1)
- •Very small sample size for flake salt (n=2)
- •Subjective color intensity coding without objective measurement
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Surprising Findings
One single sample from Peru had lead levels 30% above the legal limit, while all other 30 samples were within range.
People assume contamination is widespread if it exists — but this shows it’s highly variable and possibly due to a single bad batch, making regulation even more critical.
Practical Takeaways
Stick to the 5g (1 tsp) daily salt limit — whether it’s pink, Himalayan, or table salt.
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 541 / 100
Probability of being correct
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Cross-Sectional Study
Subject
Moderate probability
on the GRADE evidence scale
This study just looked at what’s inside different pink salts you can buy in stores—it didn’t test if they make people healthier or sicker. It found some minerals in them, but not enough to matter, and one had too much lead. So it tells us what’s in the salt, not what the salt does to your body.
Strengths
- Used accredited laboratory and standardized ICP-MS for precise mineral quantification
- Compared pink salt to a control (iodized white salt)
- Reported statistical significance for observed differences
Weaknesses
- Small sample size (n=31 pink salt, n=1 control)
- Non-random sampling from limited geographic areas
- No information on how samples were selected beyond 'all available'
Methodology
Evidence Keywords
Statistical Reporting
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Scientists tested pink salt sold in Australia to see if it had more good minerals than regular salt.
Research results
Pink salt had tiny amounts of extra minerals like iron and magnesium, but you’d need to eat over 6 teaspoons a day to notice any benefit—way more than the 1 teaspoon doctors recommend. One sample had too much lead.
What this means - more context
No, the extra minerals aren’t meaningful because you’d have to eat dangerously too much salt to get them, and too much salt harms your heart and blood pressure.
This study evaluated the mineral composition of pink salt available in Australia to assess its nutritional value and public health implications, particularly regarding contaminant risks.
Pink salt showed wide variation in mineral content, with higher levels of some nutrients (calcium, magnesium, iron, potassium) and non-nutritive minerals (aluminum, silicon, barium) compared to iodized white salt, but one sample from Peru exceeded safe lead limits (>2 mg/kg). Consuming enough pink salt to gain nutritional benefits would require >30 g/day—far exceeding safe sodium limits.
Methods Used
31 pink salt samples and 1 iodized white salt control were purchased from Australian retailers and analyzed using ICP-MS mass spectrometry to measure 25 minerals. Samples were categorized by color, form, and origin; statistical tests (ANOVA, t-tests) assessed differences.
Main Finding
One pink salt sample from Peru contained lead at 2.59 mg/kg, exceeding Australia’s maximum contaminant level of 2 mg/kg. While pink salt had higher levels of some nutrients, 5 g (1 tsp) contributed negligibly to daily intake except for sodium, which met the recommended limit. Meaningful nutrient gains would require >30 g/day, posing severe sodium risks.
Confidence Level
Moderate. The study used validated mass spectrometry and appropriate statistical tests, but sample size was small (n=31), flake salt samples were limited (n=2), and color coding was subjective. One contaminant result (lead) was based on a single sample.
Study Flags
Red Flags
- •Single sample exceeded lead safety limit (n=1)
- •Very small sample size for flake salt (n=2)
- •Subjective color intensity coding without objective measurement
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Surprising Findings
One single sample from Peru had lead levels 30% above the legal limit, while all other 30 samples were within range.
People assume contamination is widespread if it exists — but this shows it’s highly variable and possibly due to a single bad batch, making regulation even more critical.
Practical Takeaways
Stick to the 5g (1 tsp) daily salt limit — whether it’s pink, Himalayan, or table salt.
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 541 / 100
Probability of being correct
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Cross-Sectional Study
Subject
Moderate probability
on the GRADE evidence scale
This study just looked at what’s inside different pink salts you can buy in stores—it didn’t test if they make people healthier or sicker. It found some minerals in them, but not enough to matter, and one had too much lead. So it tells us what’s in the salt, not what the salt does to your body.
Strengths
- Used accredited laboratory and standardized ICP-MS for precise mineral quantification
- Compared pink salt to a control (iodized white salt)
- Reported statistical significance for observed differences
Weaknesses
- Small sample size (n=31 pink salt, n=1 control)
- Non-random sampling from limited geographic areas
- No information on how samples were selected beyond 'all available'
Methodology
Evidence Keywords
Statistical Reporting
Scoring
How strong is this study?
The scientists used fancy machines to measure the minerals accurately, which is good. But they only checked a few salts from a few stores, and didn’t test each one more than once. So we can trust what they found in those samples, but we can’t be sure it’s true for all pink salt everywhere.
0 / 100
- COI disclosureconflicts of interest not disclosed
- Data availabilitydata not shared
- Code availabilitycode not shared
22 / 100
- Randomizationnot randomized
- Blindingblinding unclear
- Control group+15/15
- Sample size (n=32)+3.0/20
- Follow-upno follow-up reported
100 / 100
54 / 100
- P-values+15/15
- Effect size+20/20
- Confidence intervalsno confidence intervals
- Pre-registrationnot pre-registered
Each component is scored out of 100 and then capped by the study design — a case series cannot reach the ceiling a randomised trial can, however well it is reported.
Where it sits
RCT reviewsReviews of RCTs (Meta-analyses)
Max 100Randomized TrialsRandomized Trials
Max 90Reviews of Cohort StudiesReviews of Cohort Studies
Max 85Cohort StudiesCohort Studies
Max 72Reviews of Case-Control StudiesReviews of Case-Control Studies
Max 63Case-Control StudiesCase-Control Studies
Max 58Cross-Sectional & Case SeriesCross-Sectional & Case Series
Max 50Expert OpinionExpert Opinion
Max 541 / 100
Probability of being correct
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
This design cannot establish causation — the findings describe an association, not a cause. This is a cross-sectional study that measures mineral content in existing salt products without manipulating variables or controlling for confounders; it cannot establish cause-effect relationships because it observes naturally occurring variation without experimental control.
Standing
Who’s using this study?
The videos and claims on this site that lean on this study, and the researchers who wrote it.
1 video from Nutrition Made Simple! cite this study, drawing 1 claim from it.
- Contradicted
Evidence contradicts this claim.
Evidence
Authored by
9 researchersIf this is your work, this is how we attribute it on Fit Body Science. Flávia Fayet‐Moore is listed as the lead author.