Common vitamin could protect some heart attack survivors, study shows

People with a past of cardiac apprehension could support themselves from aboriginal hazard with 1 elemental regular habit.

A survey astatine Intermountain Health successful Salt Lake City, Utah, discovered that supplementing with vitamin D3 tin importantly trim the hazard of a 2nd bosom onslaught successful those who person already suffered one.

In a large, randomized objective trial, researchers monitored patients’ humor levels for vitamin D, portion adjusting doses to "achieve optimal levels," according to a property release.

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They recovered that treating bosom onslaught patients with higher doses of vitamin D3 chopped the hazard of a 2nd bosom onslaught successful half.

The findings were presented astatine the 2025 American Heart Association Scientific Sessions successful New Orleans connected Sunday.

Vitamin D3 supplementation tin chopped the hazard of bosom onslaught recurrence successful half, a caller survey found. (iStock)

The study, called the TARGET-D trial, progressive 630 patients betwixt April 2017 and May 2023 who had experienced a bosom onslaught wrong the erstwhile month. Eighty-five percent had insufficient vitamin D3 levels.

Participants were separated into 2 groups: One received targeted vitamin D3 treatment, and the different did not. The extremity was to rise humor levels to much than 40 nanograms per milliliter (40 ng/mL).

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Participants successful the vitamin D attraction radical had their humor levels checked erstwhile a twelvemonth to find whether they were supra 40 ng/ml. 

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More than fractional of them required an archetypal dose of 5,000 planetary units (IU). (Most adults are advised to instrumentality 600 to 800 IU of vitamin D per time to support a level of astir 30 to 50 ng/mL.)

The participants were followed until March 2025 to show their cardiovascular health. Of the 630 patients, 107 experienced a large cardiac event.

Vitamin D3 has been connected to improved cardiovascular wellness successful erstwhile studies. (iStock)

Lead researcher Heidi May, Ph.D., cardiovascular epidemiologist astatine Intermountain Health, said successful a connection that nary adverse outcomes were noted aft administering higher doses of vitamin D3.

"We’re excited [about] these results, but we cognize we person further enactment to bash to validate these findings," she said.

"Normal vitamin D values person been shown to alteration coronary artery disease, bosom nonaccomplishment and stroke."

Up to two-thirds of radical worldwide person debased levels of vitamin D, according to May.

Sun vulnerability is the astir common, earthy method of getting capable amounts of the vitamin, but that has decreased owed to manner changes successful caller years, according to Intermountain.

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Dr. Bradley Serwer, a Maryland-based interventional cardiologist and main aesculapian serviceman astatine VitalSolution, who was not progressive successful the study, said it’s "long been recognized" that maintaining optimal levels of vitamin D offers "substantial cardiovascular benefits."

"Previous studies person established a correlation betwixt debased serum vitamin D levels and an elevated hazard of hypertension, coronary artery disease, changeable and bosom failure," helium told Fox News Digital.

Further probe is indispensable to find the effectiveness of vitamin D supplementation successful lower-risk populations. (iStock)

However, the anterior probe failed to show however effectual vitamin D supplements were successful reducing the hazard of bosom attacks, according to Serwer. 

"Notably, these studies often prescribed a modular replacement dosage that was often insufficient to reconstruct steadfast vitamin D levels," helium noted.

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These caller findings of a 50% hazard simplification for second-time bosom attacks, though encouraging, progressive higher-risk patients and whitethorn not use to lower-risk populations, the cardiologist pointed out.

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"Further probe is indispensable to measure the efficacy of vitamin D supplementation successful lower-risk individuals," helium said. "If vitamin D levels are wrong the mean range, the grounds regarding the benefits of further supplementation is inconclusive."

Vitamin D is "more of a hormone than a vitamin," which is "crucial to organ function, including the heart," a doc said. (iStock)

Fox News elder aesculapian expert Dr. Marc Siegel commented successful a abstracted interrogation with Fox News Digital that this survey highlights what is already known astir vitamin D and bosom health.

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"This is an important survey astir keeping levels normal," helium said. "Vitamin D deficiency leads to inflammation and humor clotting. Normal vitamin D values person been shown to alteration coronary artery disease, bosom nonaccomplishment and stroke."

Siegel added that vitamin D is "more of a hormone than a vitamin," which is "crucial to organ function, including the heart."