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the claim

Vitamin C supplementation lowers blood pressure.

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INSUFFICIENT LEANING
Recorded sources
7 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that vitamin C supplementation lowers blood pressure?

Unclear. Several small trials and animal studies report that vitamin C supplementation lowered blood pressure, including a meta-analysis snippet noting short-term trials reduced systolic BP, but the evidence covers only specific populations and short durations, with long-term effects still uncertain.

Verdict: PARTIAL LEAN · 7 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 7
Dietary vitamin C supplementation lowers blood pressure in spontaneously hypertensive rats.
2001
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Dietary vitamin C supplementation lowers blood pressure in spontaneously hypertensive rats.. (2001). pubmed.ncbi.nlm.nih.gov. https://pubmed.ncbi.nlm.nih.gov/11330844

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More for · 6
Dietary vitamin C supplementation lowers blood pressure in spontaneously hypertensive rats.
2001
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Vasdev, S., Ford, C. A., Parai, S., Longerich, L., & Gadag, V. (2001). Dietary vitamin C supplementation lowers blood pressure in spontaneously hypertensive rats.. doi.org. https://doi.org/10.1023/a:1007234027421

The health effects of vitamin C supplementation: a review.
1995
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Bendich, A. & Langseth, L. (1995). The health effects of vitamin C supplementation: a review.. doi.org. https://doi.org/10.1080/07315724.1995.10718484

Effects of vitamin C supplementation on blood pressure: a meta-analysis of randomized controlled trials1 -
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Effects of vitamin C supplementation on blood pressure: a meta-analysis of randomized controlled trials1 - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.3945/ajcn.111.027995

Effects of vitamin C supplementation on blood pressure and hypertension control in response to ambient temperature changes in patients with essential hypertension.
2019
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Yuan, X., Li, X., Ji, Z., Xiao, J., Zhang, L., Zhang, W., Su, H., Kaliannan, K., Long, Y., & Shao, Z. (2019). Effects of vitamin C supplementation on blood pressure and hypertension control in response to ambient temperature changes in patients with essential hypertension.. doi.org. https://doi.org/10.1080/10641963.2018.1501056

Effects of inorganic nitrate and vitamin C co-supplementation on blood pressure and vascular function in younger and older healthy adults: A randomised double-blind crossover trial.
2020
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Ashor, A. W., Shannon, O. M., Werner, A., Scialo, F., Gilliard, C. N., Cassel, K. S., Seal, C. J., Zheng, D., Mathers, J. C., & Siervo, M. (2020). Effects of inorganic nitrate and vitamin C co-supplementation on blood pressure and vascular function in younger and older healthy adults: A randomised double-blind crossover trial.. doi.org. https://doi.org/10.1016/j.clnu.2019.03.006

Vitamin C supplementation improves blood pressure and oxidative stress after acute exercise in patients with poorly controlled type 2 diabetes mellitus: A randomized, placebo-controlled, cross-over study
2021
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Boonthongkaew, C., Tong-un, T., Kanpetta, Y., Chaungchot, N., Leelayuwat, C., & Leelayuwat, N. (2021). Vitamin C supplementation improves blood pressure and oxidative stress after acute exercise in patients with poorly controlled type 2 diabetes mellitus: A randomized, placebo-controlled, cross-over study. doi.org. https://doi.org/10.4103/cjp.cjp_95_20

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