Magnesium Tops List of America’s Most In-Demand Supplements

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Article courtesy of NYO3.

• Magnesium smashes supplement competition with a staggering 527,843 monthly Google searches across America. 
• Vitamin D claims silver medal position with 358,543 monthly queries, while dietary fiber takes bronze with 338,121 searches. 
• New Yorkers are most obsessed with supplements (1,547 searches per 100,000 people), while Mississippi shows the lowest interest.   

A wellness study by dietary supplement brand NYO3 has revealed magnesium as the supplement Americans want most, based on nationwide Google searches.

The mineral pulled in more than half a million monthly searches (527,843), leaving other supplements trailing far behind in popularity stakes. It helps regulate everything from muscle function to mood and generates nearly 50% more searches than its closest competitor.

“The sunshine vitamin” – also known as Vitamin D – landed in second place with 358,543 monthly searches nationwide. This crucial nutrient supports bone strength and immune function, particularly appealing to residents in northern states.

Dietary fiber squeezed into third place with 338,121 monthly searches across America. The digestive aid sits just 5% behind Vitamin D in search volume, showing the country’s growing obsession with gut health and proper bowel function.

Iron pulled in 330,993 monthly searches from Americans. This oxygen-carrying mineral, commonly lacking in many diets especially among women, remains one of the most frequently searched nutritional supplements in the country.

Stress-busting herb ashwagandha secured fifth position with 324,383 monthly searches. The ancient Ayurvedic remedy signals Americans’ increasing willingness to explore traditional medicines for problems like anxiety and poor sleep quality.

Potassium – found naturally in bananas and potatoes – ranked sixth with 244,616 monthly searches. The heart-regulating electrolyte attracts substantial online attention despite being readily available in common foods.

Protein supplements flexed their way into seventh place with 228,240 monthly searches. The muscle-building nutrient maintains strong popularity particularly among fitness enthusiasts and dieters.

Zinc landed eighth place with 194,693 monthly searches. The immune-supporting mineral continues attracting significant interest, with search volume remaining high following recent public health scares.

Athletic performance booster creatine muscled its way to ninth position with 187,706 monthly searches. The gym favorite’s strong showing demonstrates its enduring appeal among sports and fitness communities.

Fish oil favorite omega-3 completed the top ten with 182,124 monthly searches. These essential fats maintain steady popularity for protecting brain function and heart health.

Top 10 Most Googled Supplements in America

At the bottom end of the supplement popularity contest, several health products barely registered any interest at all. Traditional herb blessed thistle, sometimes used for digestive complaints, managed just 1,890 monthly searches nationwide.

Nickel came in 51st with a paltry 1,373 monthly searches. The mineral, found naturally in the human body, rarely gets taken as a supplement and can actually cause harm when consumed in large amounts.

Four supplements tied for dead last with effectively zero monthly searches: 5-HTP, black cohosh, horny goat weed, and 4-aminobenzoic acid. These products, despite having specific uses for certain health conditions, failed to generate measurable search interest during the study period.

Joint health supplement chondroitin sulfate ranked 49th with just 2,381 monthly searches. This surprisingly low interest raises eyebrows given how many Americans suffer from joint problems, particularly in the aging population.

Andrographis, an herb used in some traditional medicine systems for immune support, landed in 48th place with only 2,845 monthly searches. The botanical remedy remains virtually unknown to most modern American consumers.

10 Least Googled Supplements in America

The research also examined which states showed most interest in supplements based on search volume per population. New York topped the list with 1,547.40 searches per 100,000 residents.

Illinois claimed second place with 1,505.26 searches per 100,000 residents, while California secured third with 1,499.34 searches.

Magnesium ranked as the most searched supplement in every single state without exception, showing unusual consistency across all geographic regions.

A spokesperson from NYO3 commented on the findings: 

“These results highlight the growing interest in supplements like magnesium that support multiple body functions. Many Americans are taking a more proactive approach to their health, researching supplements that address common concerns like sleep quality, stress management, and energy levels.

“The consistent popularity of magnesium across all states is noteworthy. This essential mineral plays a role in over 300 enzymatic reactions in the body, yet many Americans may not get enough through diet alone. The high search volume suggests growing awareness of its importance for overall health.”

State-by-State Supplement Interest (Top 10 States)

Methodology: 

Monthly average search volume data was taken from Google Keyword Planner based on searches over the 12 months between May 2024 and April 2025 to reveal the rankings.

The top 60 Dietary Supplements according to public health resources were analyzed based on searches for terms including:

• “[supplement] benefits”
• “[supplement] food”
• “[supplement] supplement”
• “food with [supplement]”
• “best food for [supplement]”
• “high [supplement] diet”
• “best [supplement] supplement”
• “how much [supplement] per day”
• “[supplement] rich food”