Crit Rev Food Sci Nutr December 1991 PMID 1657026

Effects of dietary fiber and phytic acid on mineral availability.

M Torre, A R Rodriguez, F Saura-Calixto

Mentions

45
Peak: 30 in Aug 2019
across 3 sources since Apr 2019

Extended reach

480,655
potential audience

Total likes

3,236

Video views

140,709

Mentions per month

Apr 2019 – Oct 2025

Where it's discussed

  • X / Twitter40 posts
  • Facebook3 posts
  • YouTube2 videos

AI synopsis

What people are saying

The posts collectively express a cautious perspective on dietary fiber, emphasizing its potential to block mineral absorption, with examples mentioning oxalates in vegetables and phytic acid in grains, and using phrases like 'antinutrients' and 'block absorption' to underscore the significance of the findings. Tone and word choice reflect both concern and critical analysis, pointing to perceived impacts on nutrition and diet management.

AgreementModerate agreement

Most discussions highlight concerns about the negative effects of dietary fiber and phytic acid on mineral absorption, indicating a general agreement with the article's focus on these limitations.

InterestHigh interest

Posts show high interest by referencing specific minerals, such as magnesium and iron, and discussing dietary implications, reflecting curiosity about nutrient bioavailability.

EngagementModerate engagement

Several users delve into detailed mechanisms, citing foods like spinach and pasta, and commenting on research implications, signaling moderate engagement.

ImpactModerate impact

The discussions suggest that the research impacts dietary choices and nutritional understanding, especially with calls to reconsider fiber intake and its health effects.

Abstract in brief

  • Dietary fiber can bind minerals like metallic cations, affecting their absorption, but the exact impact varies depending on the type and amount of fiber, as well as other food components and digestive factors.
  • There are many challenges in studying this, including different experimental methods, and it is difficult to distinguish the effects of fiber from those of phytic acid, which often occurs together in high-fiber diets.
  • Current evidence suggests that increasing dietary fiber does not harm mineral absorption if paired with adequate intake of proteins, vitamins, and acids from fruits and vegetables, but excessive phytate should be avoided, especially for individuals with high mineral needs.]

Top posts

Most liked on X and Bluesky
Ken D Berry MD
@KenDBerryMD · X

Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital nutrients. Please tell me you don't still add fiber to your diet?? https://t.co/RB62b3DtfF https://t.co/uoVYuNgJYL

Aug 18, 2019 · 120 likes · 33 shares · 304,143 followers View post →
fool me can’t get fooled again
@foolmealex · X

Fiber from plant foods breaks down into several compounds including the antinutrient phytic acid. Phytic acid blocks absorption of vital minerals, including magnesium, iron, zinc, calcium, and copper. Nearly all plant foods contain fiber. Eat meat. https://t.co/zuqXFaBWET https://t.co/K8ktzIiomb

Mar 9, 2025 · 3 likes · 1,654 followers View post →
fool me can’t get fooled again
@foolmealex · X

The phytic acid in wheat pasta will block any iron that might come from the iron Snoopy. https://t.co/WR2rlg6Je0 If spinach, potatoes, tomatoes, parsley, lettuce, or cabbage accompany the pasta, the oxalates in these vegetables also block the absorption of iron. https://t.co/f5mcMoWeBU

Apr 25, 2025 · 2 likes · 1,654 followers View post →
Bart Jankowski
@bartjankowski82 · X

@KenDBerryMD 11- https://t.co/7vNRfPnA1E https://t.co/9pvzzYDsI3 https://t.co/owHMQWpIey

Sep 13, 2020 · 2 likes · 49 followers View post →
Toekneebob
@toekneebob · X

@LLLaneyLane @Grrfolk Here's one about how fiber can be a detriment. https://t.co/1Ad4tYKNWm

Apr 10, 2019 · 1 like · 17 followers View post →
Lone Star Keto Girl ❤️
@Lone_Star_Keto · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 19, 2019 · 33 shares · 9,540 followers View post →

All mentions

Zbrodniarz wojenny
@xwldsrki · X

@Rafal18921126 @1realistal @PiotrWiel Błonnik blokuje minerały https://t.co/DQTlJ5ltpt https://t.co/oGgqk94RDx

Oct 27, 2025 · 31 followers View post →
Zbrodniarz wojenny
@xwldsrki · X

@grok @Norbert47868633 @Karolina1652463 @Buckarobanza @rzecznik_Maspex @grok LDL: badania na Inuitach i Masajach czyli plemionach które sie żywią carnivorem pokazują że nie mają chorób serca, winowajca są oleje do smażenia, omega6 i nadmiar glukozy przez co jest glikacja - jeszcze jedno badanie o błonniku https://t.co/DQTlJ5m1f1

Sep 23, 2025 · 31 followers View post →
fool me can’t get fooled again
@foolmealex · X

The phytic acid in wheat pasta will block any iron that might come from the iron Snoopy. https://t.co/WR2rlg6Je0 If spinach, potatoes, tomatoes, parsley, lettuce, or cabbage accompany the pasta, the oxalates in these vegetables also block the absorption of iron. https://t.co/f5mcMoWeBU

Apr 25, 2025 · 2 likes · 1,654 followers View post →
fool me can’t get fooled again
@foolmealex · X

Fiber from plant foods breaks down into several compounds including the antinutrient phytic acid. Phytic acid blocks absorption of vital minerals, including magnesium, iron, zinc, calcium, and copper. Nearly all plant foods contain fiber. Eat meat. https://t.co/zuqXFaBWET https://t.co/K8ktzIiomb

Mar 9, 2025 · 3 likes · 1,654 followers View post →
Käkekk Jäkekk
@KakekkJakekk · X

@suskullaonasiaa @Faktantarkast10 @iltalehti_fi Kuvassa maksan ja maidon mineraalit jotka oikeasti imeytyy koska niissä ei ole oxalaatteja ja fytiinihappoa eikä ne ole riippuvaisia maaperän mineraalikompostiosta, ihminen ei tarvi kuitua ja joillekin se aiheuttaa ongelmia. https://t.co/KZdbAwqLHD https://t.co/lCHAwsNUWP https://t.co/1U9khUXCqJ

Dec 2, 2024 · 46 followers View post →
Michael Neely
@MichaelLNeely · X

@lean_minded @maxlugavere Meta-analyses. Associational Oh, and fiber binds nutrients and can affect bioavailability of same. https://t.co/gjmwJH6IO2 Pectin/fiber inhibits digestive/ pancreatic enzyme function reducing protein digestion (anti-nutritive, sounds healthy)

Jan 25, 2023 · 209 followers View post →
bioMioSoftware
@bioMioSoftware · X

@shivadas29 @nick_krontiris https://t.co/I1sB24g2H0 "dietary fiber may bind metallic cations..effects of fiber on the utilization of nutrients vary greatly with the amount and type..many agents in both food and the digestive tract that may ..inhibit binding, while others will enhance it." 1/2

Dec 9, 2020 · 103 followers View post →
DrAlex de la PazDPT
@DPTdelaPaz · X

“The capacity of dietary #fiber to bind polyvalent mineral ions (Zn, Ca, Mg, Se, Fe) may also impart a negative effect on the bioavailability of some nutrients...” https://t.co/4BVeNwrtdQ

Nov 15, 2020 · 394 followers View post →
Bart Jankowski
@bartjankowski82 · X

@KenDBerryMD 11- https://t.co/7vNRfPnA1E https://t.co/9pvzzYDsI3 https://t.co/owHMQWpIey

Sep 13, 2020 · 2 likes · 49 followers View post →
والشوق باقي ما انمحى
@marratsana · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 23, 2019 · 33 shares · 252 followers View post →
Lone Star Keto Girl ❤️
@Lone_Star_Keto · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 19, 2019 · 33 shares · 9,540 followers View post →
E Meow
@emeowwww · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 19, 2019 · 33 shares · 3,239 followers View post →
Jeremy Hannan
@bionicsloth_ · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 19, 2019 · 33 shares · 98 followers View post →
me
@KarenCLE1 · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 19, 2019 · 33 shares · 630 followers View post →
Luis
@elemito1 · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 19, 2019 · 33 shares · 55 followers View post →
YolandaElizabet: #stoptheWHO
@yolandaelizabet · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 19, 2019 · 33 shares · 3,948 followers View post →
Cyndie Scavuzzo
@cyndietweets · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 24 followers View post →
karen redding
@karendhr · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 47 followers View post →
Vicki Lynn Rasmussen
@littlerasco · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 22 followers View post →
Adi Setyawan MD
@AdiSObGyn · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 354 followers View post →
Alberto García
@AGG7 · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 548 followers View post →
ActivatedNutJob
@ActivatedNutJob · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 403 followers View post →
Matt Housand
@MattHousand · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 43 followers View post →
Clay Collins
@Collinsmclay · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 462 followers View post →
Peter Palmer
@peterpalmer52 · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 1,677 followers View post →
Cathy's Hobbies
@ciander2000 · X

Effects of dietary fiber and phytic acid on mineral availability https://t.co/GLazyCbDAk

Aug 18, 2019 · 36 followers View post →
Freddie & Willie
@freddienwillie · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 263 followers View post →
BeTheShovel
@BeTheShovel · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 46 followers View post →
CambridgePT
@cambridge_pt · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 2,305 followers View post →
Notorious Regulator
@denisezapf · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 213 followers View post →
mizbee
@mizbee2 · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 64 followers View post →
Udell webb
@UdellWebb · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 114 followers View post →
Meidas Chevy99
@MeidasChevy99 · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 2,750 followers View post →
Pájaro
@pajarohgl · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 380 followers View post →
Anthony Poselenzny
@APoselenzny · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 1,001 followers View post →
Al the wop
@Cat25Mom · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 120 followers View post →
Stephen Fitzmeyer, M.D.
@WarpCoreHealth · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 374 followers View post →
Al Soto
@AlSoto9 · X

RT @KenDBerryMD: Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital…

Aug 18, 2019 · 33 shares · 694 followers View post →
Ken D Berry MD
@KenDBerryMD · X

Insoluble fiber can bind to minerals such as zinc, magnesium, calcium, and iron, preventing the absorption of these vital nutrients. Please tell me you don't still add fiber to your diet?? https://t.co/RB62b3DtfF https://t.co/uoVYuNgJYL

Aug 18, 2019 · 120 likes · 33 shares · 304,143 followers View post →
Toekneebob
@toekneebob · X

@LLLaneyLane @Grrfolk Here's one about how fiber can be a detriment. https://t.co/1Ad4tYKNWm

Apr 10, 2019 · 1 like · 17 followers View post →