A serving of olives provides a modest amount of iron, with black olives generally containing more (around 1 mg or more per typical serving, potentially up to 3.3mg per 100g) compared to green olives (closer to 0.15mg or less), making them a decent plant-based source, especially for black olives, which can contribute 6-18% of your daily value depending on the portion size.
100g of olives contains 3.3mg of iron! That's 25% more iron than spinach. And although you might not fancy eating a handful of raw spinach, a bowl of fresh olives are easy to nibble on and a pleasure to eat. Olives also contain a variety of beneficial plant compounds that lower the risk of heart disease.
There's no set amount of olives you should eat each day. As with any food, moderation is key. Because olives have a relatively high sodium content, it's particularly important to pay attention to portion size — especially if you have a health condition that requires monitoring salt intake.
“Black olives contain more iron than green olives, which is useful for women with a tendency to anemia or chronic fatigue,” she says, adding that 100 grams of black olives (about 20-30 olives) contain approximately 3.3 milligrams of iron, which is about 18% of the daily recommended intake for adults.
To quickly increase iron levels, eat heme iron from red meat, poultry, and seafood, pairing plant-based iron (spinach, beans, lentils) with Vitamin C sources like citrus or tomatoes to boost absorption, while avoiding coffee, tea, and milk with meals; iron supplements may also be needed, but consult a doctor first.
Foods That Block Iron Absorption
Olives. "Foods rich in healthy fats like olives, nuts, and avocados are great nighttime snacks that can keep you feeling fuller longer and also help to stabilize blood sugar levels," says Dr. Josh Axe DNM, DC, CNS, member of The Vitamin Shoppe Wellness Council.
Fruit
To the editor: We have recently seen a 42-year-old woman with iron deficiency anemia and an intense craving for olives that was relieved by oral iron therapy. The patient gave a history of menorrhagia of many years' duration. Four months before hospitalization she began to develop an intense craving for olives.
By eating a few olives before a meal, you can take the edge off your appetite. This is because the monounsaturated fatty acids contained in healthy olives slow down the digestion process and stimulate the hormone cholecystokinin, which sends messages of fullness and satisfaction to the brain.
How olives are processed and packed matters more than their color, Zumpano notes. Jar olives (and fresh olives) tend to be healthier than canned. Just choose jar olives in a brine with water or a healthier oil, such as extra virgin olive oil, says Zumpano.
Fresh olives can be a healthy part of a varied diet, adding extra nutrients and polyphenols to your plate. Just don't overdo it—a small handful or 15-20 grams is enough to enjoy the benefits without too much salt. A quick rinse under cold water can also help wash some of it away.
Iron pills typically start to work within 3 to 7 days. However, it can take some time to actually get your iron levels up. Hemoglobin blood levels generally go up after 2 to 4 weeks of consistent supplementation. Symptoms like fatigue, weakness, and headache should start to improve during this timeframe.
While fresh fruits offer some iron, dried fruits like dried apricots, dried peaches, and dried figs are significantly higher in iron content per serving, with dried apricots often topping the list, providing around 6-7 mg of iron per 100g, making them excellent choices for boosting your iron intake, though moderation is key due to natural sugars.
Iron deficiency symptoms include extreme tiredness, pale skin, shortness of breath, dizziness, headaches, cold hands/feet, brittle nails, sore tongue, and cravings for non-food items (pica) like ice or dirt, with more severe cases causing rapid heartbeat or poor concentration, though mild cases might show no symptoms.
To get 100% of your daily iron, focus on iron-rich foods like lean red meat, poultry, and seafood (heme iron), which are easily absorbed, and plant sources like lentils, beans, tofu, spinach, fortified cereals, and dried fruits (non-heme iron), pairing them with Vitamin C (citrus, capsicum) to boost absorption and avoiding tea/coffee with meals. Fortified cereals can provide 100% DV in one serving, but a varied diet is key, says Dietitians Australia.
Two eggs a day provide a decent start to your iron intake (around 1.4-1.7mg, or 10-14% of RDI for adults), but it's usually not enough on its own to meet daily needs (8-18mg for adults), especially for women of childbearing age, and the iron in eggs (non-heme iron) is less easily absorbed than iron from meat. To boost iron, pair eggs with Vitamin C sources like spinach or bell peppers and include other iron-rich foods like lean meats, beans, and fortified cereals in your diet, as recommended by Dietitians Australia and Meat & Livestock Australia.
Olives that are too soft, super mushy and breaking apart or bruised are a sign your olives have degraded. If combined with a bad smell, get rid of those olives!
Tryptophan, an amino acid that promotes serotonin production. Serotonin is a hormone that helps regulate your sleep. Your body can't produce tryptophan on its own — it has to be obtained through your diet. Good sources: turkey, chicken, fish, eggs, cheese, edamame, peanuts, tofu, quinoa and pumpkin seeds.
The Mediterranean diet includes consuming antioxidant-rich extra-virgin olive oil. The proven health benefits of this “liquid gold” are numerous. They include lowering the risk of cardiovascular disease, dementia, and cognitive decline.
Iron is lost from the body through sweat, shedding intestinal cells, and blood loss.
Anemia due to iron deficiency is a highly prevalent medical condition in women and children. Iron deficiency presents with fatigue, low mood, anxiety, restlessness, palpitations, and headache. Poor nutritional intake can be the reason of iron deficiency in underprivileged populations.
Nutrition Plan to Avoid Iron Deficiency Anemia
Iron is a mineral found in both animal and plant-based foods; however, the body absorbs iron from animal foods much better than the iron from plants. The best iron-rich meats are liver, red meat, poultry, egg yolk and seafood (such as sardines, shrimp, tuna and oysters).