Potassium Supplement Ingredient

Impact

Highest effect

Typical dose:99–495 mg

Potassium's role in counteracting sodium and maintaining cellular electrical gradients is fundamental to cardiovascular health.

Study evidence

117 studies

Increasing potassium intake can lower blood pressure, particularly in people with hypertension, and higher dietary intake is associated with fewer cardiovascular events. Benefits depend on context: supplementation is not consistently effective, and excessive blood potassium can be dangerous, especially when potassium excretion is impaired.

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Energy

Impact

High effect

Typical dose:99–200 mg

Potassium works with sodium to maintain the electrochemical gradient across cell membranes, which is necessary for nerve impulses and muscle function. An imbalance or deficiency can lead to muscle weakness, cramping, and a general feeling of fatigue, especially after exertion or dehydration.

Study evidence

2 studies

The supplied evidence does not show that ordinary potassium supplements increase energy or relieve fatigue. Research on dietary potassium found no clear change in resting energy expenditure, while favorable fatigue findings involved a specific medicinal compound rather than potassium alone.

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Bone Health

Impact

Moderate effect

Typical dose:99–1000 mg

The role of potassium in mitigating acid load to spare skeletal calcium is a well-supported mechanism for preserving bone mineral density.

Study evidence

39 studies

Potassium-rich diets are associated with better bone health, and potassium citrate or bicarbonate can improve some markers of bone metabolism. However, effects on bone density are inconsistent, and the evidence does not establish that potassium itself or routine supplementation prevents fractures.

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Muscle Gain

Impact

Moderate effect

Typical dose:99–400 mg

As a key electrolyte, potassium is critical for nerve impulse transmission and muscle function. Sweat loss during intense exercise can deplete levels, impairing performance and recovery. Ensuring adequate intake prevents it from becoming a limiting factor in training quality.

Study evidence

4 studies

Higher dietary potassium is associated with greater muscle mass or better physical performance in some populations, but this does not show that potassium supplements build muscle. Restoring potassium in severe deficiency can recover strength, which is different from increasing muscle size in healthy people.

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Fitness

Impact

Situational effect

Typical dose:99–400 mg

Potassium is lost through sweat alongside sodium and is critical for maintaining cellular fluid balance and proper nerve signaling to muscles. Ensuring adequate intake helps prevent cramping and supports overall cardiovascular function during exercise.

Study evidence

7 studies

Higher dietary potassium intake is associated with better physical function in some older-adult research, but supplementation has not reliably improved strength or fitness. Studies of mixed mineral products and potassium-based salts cannot show that potassium itself enhances athletic performance or prevents cramps.

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Heart Health

Impact

Situational effect

Typical dose:99–400 mg

The sodium-to-potassium ratio is a critical determinant of blood pressure. Supplementation can be situationally excellent for individuals with high sodium intake or those on certain diuretics, helping to restore balance and support healthy vascular tone. Caution is advised for those with kidney issues.

Study evidence

182 studies

Potassium can help lower blood pressure, particularly in people with hypertension or lower intake. Cardiovascular benefits also appear with potassium-enriched salt substitutes, but these reduce sodium too; extra potassium is not universally beneficial, especially when kidney function or heart-failure medicines affect blood potassium.

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Potassium

Ingredient forms

Study evidence

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Studies

Positive Interactions

Buffered Vitamin C Powder

Potassium 99 mg

Potassium (Citrate)

Optimal Electrolyte Orange

Potassium 99 mg

Potassium 99 mg

Albion Complexed Potassium 99 mg

Alkaline Minerals

TMSport Electrolyte Stamina

Dr. Strum's Intensive Bone Formula

Keto Electrolyte Powder Lemon Lime Flavor

Optimal Electrolyte Orange

Target-Mins Magnesium Potassium Aspartate With Other Target-Mins Chelates

Potassium Chloride Powder

Potassium Bicarbonate 1.3 g

Potassium Chloride 365 mg

Potassium Gluconate Pure Powder

Potassium Bicarbonate 1.3 g

Potassium Citrate

Optimal Electrolyte Lemonade

Optimal Electrolyte Seltzer

K Potassium

Ingredient forms

Studies

add_circle_outlinePositive Interactions

Buffered Vitamin C Powder

Potassium 99 mg

Potassium (Citrate)

Optimal Electrolyte Orange

Potassium 99 mg

Potassium 99 mg

Albion Complexed Potassium 99 mg

Alkaline Minerals

TMSport Electrolyte Stamina

Dr. Strum's Intensive Bone Formula

Keto Electrolyte Powder Lemon Lime Flavor

Optimal Electrolyte Orange

Target-Mins Magnesium Potassium Aspartate With Other Target-Mins Chelates

Potassium Chloride Powder

Potassium Bicarbonate 1.3 g

Potassium Chloride 365 mg

Potassium Gluconate Pure Powder

Potassium Bicarbonate 1.3 g

Potassium Citrate

Optimal Electrolyte Lemonade

Optimal Electrolyte Seltzer

Potassium

Positive Interactions