Fast answer: does olive oil have magnesium?
- Olive oil is not a meaningful magnesium source. USDA-linked MyFoodData lists standard olive oil at 0 mg magnesium per tablespoon and 0 mg per 100 g.
- Extra virgin olive oil is not different enough to use as a magnesium food. EVOO is valuable because it is minimally processed and can retain phenolic compounds, not because it delivers minerals.
- The real nutrients in a tablespoon: about 119 calories, 13.5 g fat, 9.85 g monounsaturated fat, 1.9 mg vitamin E, 8.1 mcg vitamin K, and essentially no minerals.
- Better buying rule: get magnesium from seeds, nuts, beans, whole grains, and greens; choose olive oil for freshness, flavor, low oxidation, oleic acid, and verified polyphenols.
Why this question matters
The question “does olive oil have magnesium?” usually comes from a sensible place. Magnesium is involved in muscle function, nerve signaling, blood pressure regulation, glucose metabolism, and hundreds of enzyme reactions. Many people are trying to eat more of it without adding another supplement to the cupboard. So when a generic wellness article lists olive oil beside minerals, it sounds like an easy win: drizzle more EVOO, get more magnesium.
The problem is that oils are not built like whole foods. Olive oil is the fat fraction extracted from olives. Most minerals live in the water-rich parts of foods, not in pure oil. Once you separate the oil from the olive fruit, you keep the fatty acids, fat-soluble vitamins, aroma compounds, and phenolics. You do not keep a meaningful amount of magnesium, potassium, calcium, or fiber.
That distinction matters because it changes what a good bottle should be judged on. A shopper looking for magnesium should not pay a premium for a pretty EVOO bottle and imagine they have solved a mineral gap. A shopper looking for a better daily fat, however, should absolutely care whether the oil is fresh, extra virgin, protected from light, low in oxidation, and independently tested for polyphenols.
Olive oil minerals: the numbers per tablespoon
| Nutrient | Amount in 1 tbsp olive oil | Daily value | Practical meaning |
|---|---|---|---|
| Magnesium | 0 mg | 0% | Not a magnesium source |
| Calcium | 0.14 mg | 0% | Nutritionally negligible |
| Iron | 0.08 mg | 0% | A trace only |
| Potassium | 0.14 mg | 0% | Essentially none |
| Sodium | 0.27 mg | 0% | Naturally very low sodium |
| Vitamin E | 1.9 mg | 13% | A real, though not massive, micronutrient contribution |
| Vitamin K | 8.1 mcg | 7% | A modest contribution |
Source context: MyFoodData, using USDA-derived data for “Oil, olive, salad or cooking,” reports 0 mg magnesium, 0 mg phosphorus, 0 mg zinc, 0 mg copper, and only trace calcium, iron, potassium, sodium, and iodine per tablespoon. It does report meaningful fat-soluble nutrients: vitamin E and vitamin K.
Why some pages make olive oil sound mineral-rich
Search results for olive oil and magnesium are messy. One result may claim olive oil is a good source of minerals. Another says the magnesium content is exactly zero. A third bundles olive oil with broad Mediterranean-diet benefits, then casually mentions magnesium-rich foods somewhere else. This is how a small nutrition myth grows: the benefits of a Mediterranean eating pattern get transferred onto one ingredient.
A Mediterranean meal can absolutely be magnesium-rich. Think beans cooked with tomato and herbs, spinach with garlic, whole-grain bread, lentils, chickpeas, almonds, pumpkin seeds, and dark chocolate. Olive oil often appears in that meal, but it is not supplying the magnesium. It is helping vegetables taste better, replacing butter or refined seed oils, adding oleic acid, and — if the bottle is good — supplying phenolic compounds that refined oils lack.
Medical News Today’s oil comparison makes a similar point from a different angle: common culinary oils are mostly fat, provide similar calories per tablespoon, and differ mainly in fatty-acid profile. Olive oil stands out for monounsaturated fat and extra virgin olive oil’s antioxidant compounds, not for a broad mineral payload.
The better question: what does olive oil actually give you?
1. Oleic acid
A tablespoon of olive oil contains roughly 9.6 g oleic acid, the dominant monounsaturated fat. That is the backbone of olive oil’s “healthy fat” reputation.
2. Vitamin E and vitamin K
A tablespoon contributes around 1.9 mg vitamin E and 8.1 mcg vitamin K in USDA-linked values. Useful, but not a multivitamin.
3. Polyphenols
This is where elite EVOO separates from generic oil. Our lab-ranked dataset spans oils from modest phenolic totals to more than 2,000 mg/kg.
4. Better replacement value
The strongest evidence for EVOO often comes when it replaces less favorable fats inside a Mediterranean-style diet, not when it is treated like a magic supplement.
Our lab-data edge: magnesium is the wrong shopping filter
We rank olive oils with actual polyphenol lab data, not vague front-label claims. That matters because the difference between two bottles can be enormous even when their calories and magnesium are identical. One tablespoon of a generic refined olive oil and one tablespoon of a verified high-polyphenol EVOO both provide roughly 119 calories and no meaningful magnesium. But they may differ dramatically in oleocanthal, oleacein, hydroxytyrosol derivatives, harvest recency, acidity, packaging, and oxidation risk.
This is the mistake normal buyers make in the supermarket aisle: they compare country names, bottle shape, “smooth” flavor notes, and wellness claims, while ignoring the chemistry that actually changes from bottle to bottle. If magnesium is your goal, buy pumpkin seeds. If olive oil is your goal, demand proof of quality.
Best olive oils to buy if you care about nutrients
See full rankings →Pamako Monovarietal
Best current phenolic return in our lab table: qNMR-tested Cretan Tsounati, 1,318 mg/kg oleocanthal, and an unusually strong certificate-backed profile.
Check price →Kyoord Extremely High-Phenolic
A November 2025 Kalamon batch with 1,260 mg/kg oleocanthal. Not a mineral supplement; a serious phenolic oil for people who can handle bitterness.
Check price →SP360
Fresh Jordanian Arbequina with HPLC testing, direct retail availability, and one of the strongest affiliate-friendly profiles in the rankings.
Check price →ONSURI Arbequina
Single-estate Jordanian EVOO in a practical tin. A better answer than generic supermarket oil if your goal is phenolic density, not magnesium.
Check price →Want the simplest buyer path? Start with our ranked polyphenol table, then use the shop page to find bottles with current availability and tagged buying links.
If you need magnesium, build the plate differently
The fix is not to abandon olive oil. It is to stop asking one food to do every job. Use EVOO as the flavor and fat-quality layer, then pair it with genuinely magnesium-rich foods.
| Food | Typical magnesium | How EVOO fits |
|---|---|---|
| Pumpkin seeds | ~156 mg per ounce | Add to salads finished with EVOO |
| Chia seeds | ~95 mg per ounce | Stir into yogurt or overnight oats |
| Almonds | ~80 mg per ounce | Snack or blend into pesto |
| Spinach, cooked | ~78 mg per half cup | Wilt with garlic, then finish with EVOO |
| Black beans | ~60 mg per half cup | Use EVOO in the dressing or sofrito |
| Dark chocolate | ~64 mg per ounce | Magnesium-rich, but calorie-dense |
Practical examples: magnesium food plus high-polyphenol EVOO
A better magnesium meal is a spinach and white bean bowl finished with a tablespoon of peppery EVOO. The spinach and beans carry the minerals. The oil helps absorb fat-soluble compounds, improves texture, and makes the meal something you actually want to repeat.
Another example: Greek-style yogurt with chia, almonds, berries, and a tiny spoon of robust EVOO if you like the savory-fruity edge. The chia and almonds bring magnesium; the olive oil brings phenolics and satiety. Or make a chickpea salad with pumpkin seeds, herbs, lemon, and a measured tablespoon of high-polyphenol EVOO. That is a far better plan than drinking oil and hoping for minerals.
This is also why our related guides separate use cases. If you are choosing oil for heat, read best olive oil for cooking. If you are comparing fats, read olive oil vs canola oil. If your goal is measurable phenolic intake, read how much high-polyphenol olive oil to take daily.
Bottom line
Does olive oil have magnesium? Not meaningfully. Use olive oil because it is a better culinary fat, because fresh extra virgin olive oil can deliver real polyphenols, and because it makes magnesium-rich whole foods easier to eat. But do not buy it as a mineral source. The smartest plate is simple: magnesium from seeds, beans, greens, nuts, and whole grains; phenolics from a fresh, lab-tested EVOO.
FAQ: olive oil and magnesium
Does olive oil have magnesium?
No, not in a meaningful amount. USDA-derived nutrition databases list olive oil at 0 mg magnesium per tablespoon and 0 mg per 100 g for standard salad or cooking olive oil. Treat olive oil as a fat and polyphenol food, not a magnesium food.
Is extra virgin olive oil high in magnesium?
Extra virgin olive oil is not high in magnesium. EVOO can contain small traces of minor compounds, but its reliable nutritional value comes from monounsaturated fat, vitamin E, vitamin K, and olive polyphenols, not minerals.
How much magnesium is in a tablespoon of olive oil?
A tablespoon of olive oil has about 119 calories, 13.5 g fat, 1.9 mg vitamin E, 8.1 mcg vitamin K, and 0 mg magnesium in USDA-linked MyFoodData values.
Which has more magnesium, olives or olive oil?
Whole olives usually provide more minerals than olive oil because minerals stay mostly in the watery fruit tissue, not in the extracted fat. Even then, olives are not usually a top magnesium food compared with pumpkin seeds, chia seeds, almonds, spinach, beans, or dark chocolate.
What nutrients are actually in olive oil?
Olive oil is almost pure fat. Its main fat is oleic acid, an omega-9 monounsaturated fat. A tablespoon also provides modest vitamin E and vitamin K. High-quality extra virgin olive oil can add phenolic compounds such as oleocanthal, oleacein, and hydroxytyrosol derivatives.
Should I buy olive oil for magnesium?
No. Buy olive oil for cooking quality, freshness, oleic acid, low oxidation, and verified polyphenols. If you need magnesium, build meals around seeds, nuts, legumes, whole grains, leafy greens, and mineral-rich foods instead.
Stop buying olive oil for the wrong nutrient
We tested and ranked 39 extra virgin olive oils by real polyphenol data so you can stop guessing from labels.