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Dietary sodium intake: evidence, controversies and practical recommendations
Aránzazu Aparicio, Liliana Guadalupe González‐Rodríguez, Esther Cuadrado‐Soto, Laura M. Bermejo. Nutrición Hospitalaria, 2026-01-01
Topic: Risk, prevention and care in population studies
Introduction: Excess salt intake is one of the relevant dietary determinants of elevated blood pressure and hypertension, with a direct impact on cardiovascular risk. In today's food environment, a substantial proportion of sodium comes from "hidden salt" added to processed and ultra-processed foods, which limits the effectiveness of interventions focused exclusively on the salt shaker and reinforces the need for combined strategies. The most robust scientific evidence shows that reducing sodium/salt lowers blood pressure, with a greater effect in people with hypertension and in salt-sensitive profiles. Although associations have been reported with other outcomes, such as gastric cancer, kidney stones and bone mineral balance, or cognitive decline, study findings are more heterogeneous and require cautious interpretation. Part of the current controversy arises from observational results suggesting non-linear associations and a potential modifying role of potassium, together with limitations in estimating sodium intake. Overall, the most effective approach integrates individual and population-level measures: promoting overall healthy dietary patterns, prioritizing reductions in hidden salt, using culinary strategies to preserve palatability, improving label reading, and supporting product reformulation and monitoring.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Aparicio, A., González‐Rodríguez, L. G., Cuadrado‐Soto, E., & Bermejo, L. M. (2026). Dietary sodium intake: evidence, controversies and practical recommendations. Nutrición Hospitalaria. https://doi.org/10.20960/nh.06959
Vancouver
Aparicio A, González‐Rodríguez LG, Cuadrado‐Soto E, Bermejo LM. Dietary sodium intake: evidence, controversies and practical recommendations. Nutrición Hospitalaria. 2026. doi:10.20960/nh.06959. PMID: 42377342.
BibTeX
@article{aparicio2026-42377342,
author = {Aparicio, Aránzazu and González‐Rodríguez, Liliana Guadalupe and Cuadrado‐Soto, Esther and Bermejo, Laura M.},
title = {{Dietary sodium intake: evidence, controversies and practical recommendations}},
journal = {Nutrición Hospitalaria},
year = {2026},
doi = {10.20960/nh.06959},
pmid = {42377342},
url = {https://doi.org/10.20960/nh.06959}
}
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
Key findings
- Part of the current controversy arises from observational results suggesting non-linear associations and a potential modifying role of potassium, together with limitations in estimating sodium intake.
- Overall, the most effective approach integrates individual and population-level measures: promoting overall healthy dietary patterns, prioritizing reductions in hidden salt, using culinary strategies to preserve palatability, improving label reading, and supporting product reformulation and monitoring.
Why it matters
The paper states that evidence linking sodium intake to cognitive decline is mixed and should be interpreted cautiously, while the strongest evidence concerns blood pressure. It does not show that reducing salt prevents or treats Alzheimer's disease.
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Study details
- Evidence strengthLow
How this study scored 29/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it. We have no data on senior author's track record, so that was left out: it earned 28 of the 96 points we could judge it on, which is 29 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Nutrición Hospitalaria) |
| Journal's citation record | 0 / 4 | Nutrición Hospitalaria: journal h-index 43 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 5 / 5 | 2026 — within 1 year(s) of the newest study here |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 0 / 7 | Cited 0 times (OpenAlex, 2026-10-10) |
| Citations per year | 0 / 5 | 0.0 citations a year over 2 year(s) since 2026 |
| Impact for its field and year | 0 / 6 | Cited 0.0× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 0 / 6 | No other study in this library cites it |
| Still being cited | 0 / 4 | Cited 0 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | — / 4 | OpenAlex's profile for last-listed author Laura M. Bermejo holds only 7 work(s), too few to judge a track record — left out of this score |
| Institution's track record | 0 / 3 | Universidad Complutense de Madrid: institution h-index 656 (OpenAlex) |
| Multi-centre collaboration | 1 / 3 | OpenAlex lists 3 institution(s) in 1 country |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 42377342) |
| Free to read | 2 / 2 | Free to read |
| Points | 28 / 96 | Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 28 of the 96 points we could judge it on is 29 out of 100. |
| Total | 29 / 100 | — |
What each of these 20 components measures, and what this score is not →
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