1 Your Profile
Daily Magnesium RDA
320 mg
Daily Target
How to hit 320 mg?
🎃Pumpkin Seeds
156 mg
1 oz (28g)
To hit goal: 2.1 servings
🥬Spinach (Boiled)
157 mg
1 cup (180g)
To hit goal: 2.0 servings
🍫Dark Chocolate (70%)
64 mg
1 oz (28g)
To hit goal: 5.0 servings
🥜Almonds
80 mg
1 oz (28g)
To hit goal: 4.0 servings
🫘Black Beans
120 mg
1 cup
To hit goal: 2.7 servings
🥑Avocado
58 mg
1 whole
To hit goal: 5.5 servings
🍌Banana
32 mg
1 medium
To hit goal: 10.0 servings
💡 Pro Tip: Magnesium Glycinate supplements are recommended if you can't reach this target through food alone.
Method and basis
How the figure above is derived, and when not to act on it.
Why Magnesium Matters: The Master Mineral
Magnesium is a cofactor in over 600 enzyme reactions**, influencing everything from energy production (ATP) to DNA repair. Despite its importance, up to **50% of people in developed countries consume less than the estimated average requirement.🚩 Are You Deficient? (Common Signs)
Magnesium deficiency (Hypomagnesemia) often presents subtly: * Muscle Cramps & Twitching: Calcium causes contraction; Magnesium allows relaxation. Without it, muscles stay "on." * Insomnia: Magnesium regulates GABA, a neurotransmitter that promotes sleep. * Anxiety & Irritability: Low levels correlate with higher cortisol (stress hormone) release. * Fatigue: It is essential for converting food into energy.📉 The "Magnesium Drain" (What Depletes It?)
Even if you eat well, modern lifestyle factors can drain your reserves: 1. Chronic Stress: Stress hormones cause kidneys to excrete magnesium. 2. High Sugar Intake: Processing glucose requires magnesium. 3. Caffeine & Alcohol: Both are diuretics that increase mineral excretion. 4. Intense Exercise: Athletes can lose 10-20% more through sweat and muscle repair demands.Food Sources vs. Supplements
Top Foods: * Pumpkin Seeds: 150mg per oz (37% DV). * Spinach (Cooked): 157mg per cup. * Dark Chocolate (70%+): 64mg per oz.🥦 Top Magnesium-Rich Foods (per 100g)
| Food Source | Magnesium (mg) | % DV | Bioavailability |
|---|---|---|---|
| Pumpkin Seeds | 535 mg | 134% | High |
| Hemp Seeds | 700 mg | 175% | High |
| Spinach (Boiled) | 87 mg | 22% | Moderate |
| Black Beans | 70 mg | 17% | Moderate |
| Avocado | 29 mg | 7% | High |
| Dark Chocolate | 228 mg | 57% | High |
Supplement Forms (Bioavailability Matters):
* Glycinate: Best for sleep/anxiety (high absorption, engaging brain). * Citrate: Good for constipation (laxative effect). * Oxide: Poor absorption (~4%). Avoid this cheap form found in multivitamins.Safety Note
RDA Upper Limit: 350mg *from supplements only*. High doses can cause diarrhea. Kidney patients should consult a doctor.WinSport Editorial & Research Standards
All formulas and reference values used in this tool are sourced from peer-reviewed scientific literature and validated clinical guidelines. Our research team continuously audits each calculator for accuracy and updates methodology as new evidence emerges.
Read the Science
Sports Science Articles- Athletes Are Taking Magnesium for Sleep — But Most Are Using the Wrong Form at the Wrong TimeMagnesium deficiency is the most common micronutrient insufficiency in trained athletes — and its impact on sleep architecture, muscle recovery, and nervous system function is widely underestimated.5 min read
- Not All Magnesium Is Equal: Why Threonate Crosses the Blood-Brain Barrier When Glycinate Doesn'tMagnesium L-threonate uniquely increases cerebrospinal fluid magnesium and synaptic density. Here's the evidence hierarchy across magnesium forms and what it means for athlete cognition and recovery.5 min read
- Low Magnesium Slows Post-Exercise Glucose Uptake. Most Athletes Are Never Told This Connection.Magnesium activates the TRPM6 transporter that enables insulin receptor tyrosine kinase signalling. Deficiency impairs GLUT4 translocation and post-exercise glucose uptake. Here's the mechanism athletes need to understand.5 min read
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