Potassium with Extend-Release Magnesium
Life Extension
Potassium with Extend-Release Magnesium
4.8
★ ★ ★ ★ ★
(5565 ratings)
Magnesium 250 mg
Potassium 99 mg
Score 85.0
A well-priced supplement offering a dual-form magnesium blend for improved absorption and general electrolyte support, complemented by a standard potassium dose.
Quantity: 60 Capsule(s)Servings size: 1 Vegetarian Capsule(s) (60 servings)
Selected goals:
Other goals:
General Health
Energy
Stress Relief
Heart Health
Bone Health
leaderboard Score 85.0
A well-priced supplement offering a dual-form magnesium blend for improved absorption and general electrolyte support, complemented by a standard potassium dose.
insights Analysis
Life Extension's Potassium with Extend-Release Magnesium aims to provide foundational support for various bodily functions through its blend of magnesium and potassium. Magnesium is crucial for over 300 enzymatic reactions, including energy production, muscle and nerve function, blood glucose control, and blood pressure regulation. Potassium is vital for maintaining fluid balance, nerve signals, and muscle contractions. The inclusion of both magnesium citrate, known for its good absorption, and ZumXR magnesium oxide, designed for extended release and potentially improved absorption and reduced gastrointestinal upset compared to standard oxide, addresses multiple aspects of mineral supplementation. This combination makes it suitable for individuals looking for broad mineral support without significant focus on a single, specific health issue beyond general well-being. Online reviews frequently praise its effectiveness for muscle cramps and sleep, reflecting the known benefits of magnesium, while nutritionists typically endorse multi-form magnesium for better overall absorption and reduced side effects.
- Combines highly bioavailable magnesium citrate with extended-release magnesium oxide for balanced absorption and reduced gastrointestinal discomfort.
- Excellent price per serving makes it a very cost-effective option for daily supplementation.
- Life Extension is a reputable brand known for quality and research, lending credibility to the product.
- Potassium and Magnesium are essential electrolytes supporting a wide array of crucial bodily functions, making this a foundational supplement.
- The potassium dosage is limited by regulations (99mg) and may not be sufficient for individuals with higher needs or significant deficiencies, requiring additional supplementation.
- While ZumXR improves oxide absorption, magnesium oxide still generally has lower bioavailability for systemic effects compared to chelated forms like glycinate or aspartate.
- Individuals with kidney issues should consult a healthcare professional before taking potassium supplements due to potential for hyperkalemia.
- High doses of magnesium can cause osmotic diarrhea; it's advisable to start with a lower dose if sensitive to gastrointestinal upset.
- Always consult with a healthcare provider, especially if taking medications that affect electrolyte balance or have underlying health conditions.
$11.25($0.18 per serving)
 Vitacost | $ 11.25 | |
 Pure Formulas | $ 11.25 | |
 Walmart | $ 11.25 | |
 iHerb | $ 11.25 |
bolt Effectiveness for goals
Potassium is crucial for balancing fluids and electrolytes, which directly impacts blood pressure. A higher intake of potassium, especially from food sources, is associated with a reduction in blood pressure in individuals with hypertension. Maintaining adequate potassium levels supports cardiovascular health.
Adequate potassium intake, primarily from dietary sources, is well-established to help manage blood pressure by counteracting the effects of sodium. Potassium supplements, used under medical supervision, may assist individuals with low potassium levels or help manage hypertension. Its role in maintaining electrolyte balance is crucial for cardiovascular regulation.
Both magnesium and potassium are vital electrolytes for cardiovascular health. Potassium helps regulate blood pressure and supports a healthy heart rhythm, while magnesium contributes to normal blood vessel function and muscle relaxation. Together, they play interconnected roles in maintaining heart and circulatory system function.
Magnesium is involved in over 300 enzymatic reactions in the body, impacting energy production, protein synthesis, and nerve and muscle function. It supports electrolyte balance, blood sugar regulation, and bone development. Maintaining adequate magnesium is vital for numerous physiological processes.
Magnesium contributes to normal muscle contraction and relaxation. Supplementation may help individuals with magnesium deficiency improve muscle function and reduce the incidence of muscle cramps. Its effectiveness for general muscle performance in non-deficient individuals is an area of ongoing research.
schedule Dosage, timing & forms
The Recommended Dietary Allowance (RDA) for adult magnesium intake ranges from 310-420 mg per day, depending on age and sex. Supplement dosages typically fall within this range or slightly higher to address potential deficiencies. It's important not to exceed the Tolerable Upper Intake Level (UL) of 350 mg from supplements for healthy adults, unless advised by a healthcare professional.
Magnesium supplements come in various forms, including magnesium citrate, glycinate, malate, and oxide. Each form may differ in its bioavailability and intended use, with some being better absorbed or targeting specific concerns. For example, magnesium citrate is often chosen for bowel regularity, while glycinate is known for its calming properties.
For healthy adults, the Tolerable Upper Intake Level (UL) for magnesium from supplements and pharmacological agents is 350 mg per day. Exceeding this limit from supplements without medical supervision may lead to side effects such as diarrhea or nausea. There is no UL established for magnesium obtained from food and water.
For adult men, the recommended dietary allowance (RDA) generally ranges from 400-420 mg per day, and for adult women, it's typically 310-320 mg. These figures can vary slightly based on age, sex, and specific life stages like pregnancy or lactation. Most individuals aim to meet these levels through a balanced diet.
The adequate intake (AI) for potassium for adult men is generally around 3,400 mg per day, and for adult women, it's about 2,600 mg per day. Most of this intake is typically achieved through a diet rich in fruits, vegetables, and other potassium-containing whole foods. Supplementation usually provides smaller amounts.
health_and_safety Safety & interactions
Yes, magnesium supplements can interact with various medications, including some antibiotics, bisphosphonates, diuretics, and proton pump inhibitors. These interactions can affect the absorption or efficacy of either the medication or the magnesium. It is important to discuss magnesium supplementation with a healthcare provider if taking other medications.
Yes, potassium supplements can interact with medications such as ACE inhibitors, angiotensin receptor blockers (ARBs), and potassium-sparing diuretics. These interactions can significantly increase potassium levels in the blood, potentially leading to hyperkalemia. Nonsteroidal anti-inflammatory drugs (NSAIDs) can also affect potassium balance.
Excessive intake of potassium from supplements can lead to hyperkalemia, a condition characterized by abnormally high potassium levels in the blood. Symptoms can include muscle weakness, tingling, and potentially dangerous heart rhythm abnormalities. This risk is higher for individuals with impaired kidney function.
Yes, potassium supplements can interact significantly with several medications, particularly ACE inhibitors, angiotensin receptor blockers (ARBs), and potassium-sparing diuretics. These interactions can increase the risk of hyperkalemia. Nonsteroidal anti-inflammatory drugs (NSAIDs) can also elevate potassium levels.
Individuals with kidney disease, heart conditions, or those taking certain medications (like diuretics or antibiotics) should exercise caution with magnesium supplements. People with impaired kidney function are particularly at risk for hypermagnesemia. Consulting a healthcare provider before starting any new supplement is advisable.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Magnesium | 250 mg |
Potassium | 99 mg |
Categories
Magnesium 88.0
Offers a diverse approach to magnesium delivery by combining a readily absorbed citrate with an extended-release oxide, aiming for sustained and effective repletion without major gastrointestinal upset.
Potassium 70.0
Provides the standard 99mg potassium, which is useful for baseline support and balancing other electrolytes, but the limited dosage means it may not be sufficient for individuals with significant potassium needs.
Goals
Heart Health 90.0
Both magnesium and potassium are essential for cardiovascular function, helping to regulate blood pressure, maintain a healthy heart rhythm, and support overall heart muscle health, making this combination highly beneficial.
General Health 88.0
This product provides two critical electrolytes, magnesium and potassium, which are fundamental for numerous physiological processes supporting overall well-being. The dual-form magnesium strategy enhances its general health utility by promoting better absorption.
Stress Relief 87.0
Magnesium is well-regarded for its calming effects on the nervous system and can help modulate stress responses, contributing to a more relaxed state by regulating neurotransmitters.
Recommended Alternatives
90 Value 
Potassium + Magnesium
Nutricost
4.8
★★★★★
(1105 ratings)
Offers significantly better forms (citrates) for only a slightly higher total price and much lower price per serving, providing much better value for money and efficacy.
85 Value 
Target-Mins Magnesium Potassium Aspartate With Other Target-Mins Chelates
Country Life
4.7
★★★★★
(4315 ratings)
While higher in total cost, it provides a much higher quality of ingredients (Magnesium Citrate, Potassium Aspartate) and a comparable price per serving, making it a better overall investment for quality.
90 Value 
Keto Electrolyte Powder Lemon Lime Flavor
Trace Minerals
4.7
★★★★★
(2486 ratings)
Provides high doses of both magnesium and potassium in highly bioavailable citrate forms, offering excellent electrolyte support and value for its specific purpose, despite a higher price point.
85 Performance 
Target-Mins Magnesium Potassium Aspartate
Country Life
4.8
★★★★★
(2105 ratings)
Uses superior, highly bioavailable forms (Magnesium Alpha-Ketoglutarate, Potassium Aspartate) and a higher dose of magnesium, offering better systemic benefits for all listed goals.
88 Performance 
Krebs Magnesium Potassium Complex
Nature's Way
4.8
★★★★★
(854 ratings)
Provides Magnesium Lysinate and Potassium Citrate, which are more bioavailable and generally better tolerated forms than oxide and chloride for comprehensive mineral support.
90 Performance
Potassium + Magnesium
Nutricost
4.8
★★★★★
(1105 ratings)
Uses Magnesium Citrate and Potassium Citrate, which are superior to oxide/chloride in terms of absorption and gentleness, providing more effective mineral replenishment.
55 Budget 
Potassium 99 mg
Thompson
4.7
★★★★★
(1528 ratings)
Significantly cheaper per serving if only potassium is needed, providing the standard dose at a very low cost.
45 Budget 
Magnesium 250 mg
21st Century
4.7
★★★★★
(63969 ratings)
Extremely cheap for magnesium oxide, offering a similar basic magnesium dose at a fraction of the cost if magnesium oxide is acceptable.
50 Budget 
One Daily Maximum
21st Century
4.7
★★★★★
(7276 ratings)
Offers both magnesium and potassium (oxide/chloride) at a very low price point, providing a basic mineral combination at a much lower cost.
90 Value
Potassium + Magnesium
Nutricost
4.8
★★★★★
(1105 ratings)
Offers significantly better forms (citrates) for only a slightly higher total price and much lower price per serving, providing much better value for money and efficacy.
85 Value
Target-Mins Magnesium Potassium Aspartate With Other Target-Mins Chelates
Country Life
4.7
★★★★★
(4315 ratings)
While higher in total cost, it provides a much higher quality of ingredients (Magnesium Citrate, Potassium Aspartate) and a comparable price per serving, making it a better overall investment for quality.
90 Value
Keto Electrolyte Powder Lemon Lime Flavor
Trace Minerals
4.7
★★★★★
(2486 ratings)
Provides high doses of both magnesium and potassium in highly bioavailable citrate forms, offering excellent electrolyte support and value for its specific purpose, despite a higher price point.
85 Performance
Target-Mins Magnesium Potassium Aspartate
Country Life
4.8
★★★★★
(2105 ratings)
Uses superior, highly bioavailable forms (Magnesium Alpha-Ketoglutarate, Potassium Aspartate) and a higher dose of magnesium, offering better systemic benefits for all listed goals.
88 Performance
Krebs Magnesium Potassium Complex
Nature's Way
4.8
★★★★★
(854 ratings)
Provides Magnesium Lysinate and Potassium Citrate, which are more bioavailable and generally better tolerated forms than oxide and chloride for comprehensive mineral support.
90 Performance
Potassium + Magnesium
Nutricost
4.8
★★★★★
(1105 ratings)
Uses Magnesium Citrate and Potassium Citrate, which are superior to oxide/chloride in terms of absorption and gentleness, providing more effective mineral replenishment.