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Iron is an essential nutrient which supports many vital processes in the body. It performs a very important function, such as oxygen transportation, maintenance of muscle functions, and energy metabolism. Therefore, although it is such an essential nutrient, iron deficiency remains an important global health problem especially among women and children. According to research, up to 30% of women and children in the United States suffer from iron deficiency, which may lead to anemia—a condition that hinders the body's ability to deliver oxygen effectively.
This is a common deficiency, and iron-rich foods must be included in your diet. Whether you follow a plant-based diet, a low-carb regimen, or a more traditional omnivorous approach, there are abundant sources of this critical nutrient to suit every lifestyle.
The most important role of iron is in the production of hemoglobin, a protein in red blood cells that allows oxygen to be carried from the lungs to tissues throughout the body. It also takes part in the production of myoglobin, which supplies oxygen to muscles, and supports the functions of various cells, connective tissue health, and hormonal balance.
The daily requirement for iron varies with age, gender, and life stage. For example:
- Nonpregnant women aged 19 to 50 need 18 mg of iron daily, while pregnant women require 27 mg.
- Men aged 19 and older need 8 mg per day.
- Children and adolescents require between 7 to 15 mg, depending on their age.
While iron deficiency has a consequence of fatigue and diminished immunity, too much iron can also be dangerous. Adults and teens should consume below 45 mg per day, while children under the age of 13 should intake only 40 mg in a day.
Heme iron-which is highly soluble, therefore much easier to be absorbed in the body-is well found in the diets for people who eat meat and similar products. Following are the best animal-derived sources of iron:
Shellfish, like clams, mussels, and oysters, are also high in iron. Clams, for example, contain about 3 mg of iron in every 3.5-ounce serving, which constitutes 17% of the daily value (DV). Such food products are also good sources of protein and important vitamins.
Egg is one of the finest dietary sources of heme iron, easy to introduce to any meal. Combining the eggs with vitamin C-enriched vegetables like bell peppers or tomatoes can optimize absorption.
Beef and lamb are one of the most iron-rich types of meat, and as meat cuts go, they provide great portions of zinc and B vitamins too.
There are many iron-fortified plant-based foods for vegetarians and vegans. Non-heme iron is less effectively absorbed than heme iron, but the addition of foods that contain vitamin C makes absorption highly improved. The best ones are:
A nutritional powerhouse, spinach contains 2.7 mg of iron per 3.5 ounces. Moreover, it is rich in antioxidants like carotenoids that protect the eyes and diminish inflammation. The combination of healthy fats, such as olive oil, with spinach can further enhance the nutrient absorption from the vegetable.
Chickpeas supply 1.5 milligrams of iron per cup and contribute to a plant-based protein content of 10.7 grams. Add them to your salads, pasta, or soup or blend them into the making of hummus for that delicious and iron-filled snacking.
Pumpkin seeds contain a lot of iron, with one cup of seeds having 11.4 mg. These seeds can be added to trail mixes, baked goods, or salads for an extra crunch and nutritional lift.
One cup of boiled black beans contains 3.6 mg of iron and goes really well with vitamin C-rich vegetables such as broccoli or bell peppers for improving iron absorption.
Tofu is a soy-based protein that contains 3.4 mg of iron per half-cup serving. Rich in calcium, magnesium, and selenium, tofu is a versatile ingredient that can be easily incorporated into stir-fries, salads, or sandwiches.
This gluten-free grain is an excellent source of non-heme iron, containing 2.8 mg per cup. Quinoa is also rich in protein and essential nutrients like folate and magnesium, making it a superb choice for a balanced diet.
The nutrients lentils, navy beans, and kidney beans contain contribute to 6.6 mg of iron in every cooked cup - that's about 37% of your DV.
This one's a great all-around pick for many Asian countries, packing 9.1 mg of iron into each serving of a cup, along with its fiber and manganese content. It makes a great snack, excellent addition to a salad, or blended as a fantastic dip.
Each tablespoon of sesame seeds contains 1.3 mg of iron, among other nutrients such as copper and phosphorus. Sprinkle them over salads or stir-fries to add flavor and nutrition.
While consuming iron-rich foods is essential, enhancing the body's ability to absorb this nutrient is equally important. Here are some tips:
1. Pair Iron with Vitamin C: Foods like citrus fruits, strawberries, and bell peppers can boost iron absorption when eaten with iron-rich meals.
2. Cook with Cast-Iron Cookware: Using cast-iron pans can increase the iron content of certain foods.
3. Avoid Calcium and Iron Together: Calcium can inhibit iron absorption, so try not to consume calcium-rich foods or supplements alongside iron-heavy meals.
Iron is one of the most important nutrients, and it is vital for transporting oxygen to all body parts and in the metabolism of energy. Thus, preventing iron deficiency through adequate consumption of various iron-rich foods from both animal and plant sources will prevent related health problems. The vast number of choices makes it easy to achieve daily iron needs through a healthy and balanced diet.
Are We Underestimating the Prevalence of Iron Deficiency? 2021. Columbia University
Iron. National Institute of Health
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Kidney disease affects millions globally, often silently impairing the body’s ability to filter waste and balance nutrients. Diet plays a key role in managing the condition, especially since failing kidneys struggle to process sodium, potassium, phosphorus, and, at times, protein. Choosing kidney-friendly foods can help slow disease progression and improve quality of life. While individual dietary needs may vary by stage and severity of the disease, here are 20 of the best foods known to support kidney health.
1. Cauliflower
This cruciferous vegetable is high in fiber and anti-inflammatory compounds, yet low in potassium and phosphorus. Mashed cauliflower is a great low-potassium substitute for mashed potatoes.
2. Blueberries
Packed with antioxidants called anthocyanins, blueberries help protect against heart disease and are gentle on the kidneys due to their low sodium, potassium, and phosphorus content.
3. Sea Bass
Though high in protein, sea bass contains healthy omega-3 fatty acids that reduce inflammation. However, portion control is vital.
4. Red Grapes
Loaded with flavonoids, red grapes reduce inflammation and support heart health. They're low in potassium and phosphorus, making them ideal for snacking.
5. Egg Whites
A high-quality, low-phosphorus protein source, egg whites are a better option than whole eggs for people on a renal diet.
6. Garlic
With potent anti-inflammatory properties and rich flavor, garlic helps reduce reliance on salt and enhances immune function.
7. Buckwheat
This gluten-free grain is rich in nutrients like iron and magnesium while being low in potassium, making it a kidney-friendly choice.
8. Olive Oil
Free of phosphorus and rich in heart-healthy monounsaturated fats, olive oil supports both kidney and cardiovascular health.
9. Bulgur
Bulgur is a whole grain alternative lower in phosphorus and potassium than brown rice or quinoa and provides beneficial fiber.
10. Cabbage
Available in many varieties, cabbage is rich in vitamins and antioxidants that may reduce kidney and liver damage risk.
11. Skinless Chicken
Lean and high in protein, skinless chicken is suitable in limited quantities. Choose fresh over processed to avoid excess sodium.
12. Bell Peppers
Low in potassium and high in vitamins A and C, bell peppers support immune health without stressing the kidneys.
13. Onions
Flavorful and full of antioxidants, onions serve as a sodium-free base for many dishes, aiding digestion and kidney health.
14. Arugula
A low-potassium green, arugula is nutrient-dense and safe for kidney-friendly salads, with added bone benefits from vitamin K.
15. Macadamia Nuts
Lower in phosphorus than most nuts, macadamias are a smart, crunchy snack in moderation for those on a renal diet.
16. Radishes
Crunchy and spicy, radishes are extremely low in potassium and phosphorus, making them a refreshing addition to meals.
17. Turnips
A great alternative to potatoes, turnips offer fiber and vitamin C with relatively low mineral content.
18. Pineapple
Lower in potassium than other tropical fruits, pineapple provides fiber and bromelain, an enzyme that may reduce inflammation.
19. Cranberries
Helpful in preventing urinary tract infections, cranberries are also low in kidney-stressing minerals and can be enjoyed fresh or dried.
20. Shiitake Mushrooms
These flavorful fungi are a good plant-based protein source, rich in B vitamins and lower in potassium and phosphorus than other mushrooms.
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Choline is often known as "brain food". It is a nutrient related to B vitamins that play an important role in body and brain functions. However, the concerning part is about 90% of people do not consume enough of it.
It is essential for producing acetylcholine, which is a neurotransmitter that helps neurons or the nerve cells to build connections and communicate effectively. As people age, acetylcholine levels naturally decline. When these levels are lower than usual, it can cause conditions like Alzheimer's disease. Research also suggests that low levels of acetylcholine can impair memory, focus, and the ability to recall words.
As per a 2021 study published in the journal Behavioral Neurology, individuals who consumed between 188 to 400 mg of choline on a daily basis had a lower risk of cognitive decline. They had at least 40% less risk of experiencing cognitive decline compared to those with lower intakes of choline.
There are various forms of choline some benefit more than others.
For instance phosphatidylcholine is a type of choline that is found in eggs and is linked with lower dementia risk. A 2019 study observed that every additional 50 mg per day of phosphatidylcholine intake was associated with a 10 percent decrease in the likelihood of developing dementia. Since a large egg contains around 169 mg of choline, most of which is phosphatidylcholine, incorporating eggs into the diet can be particularly effective.
There are other emerging research in this field that suggests that increasing choline intake after Alzheimer's diagnosis could also slow the progression of the disease. It could also provide potential benefits even in the later stages of cognitive decline.
Other than helping the brain stay sharp, choline can also help maintain healthy liver function. It can play an important role for fat and glucose metabolism and reduce the risk of metabolic diseases like fatty liver disease and Type 2 diabetes.
It could also contribute to cardiovascular health by controlling inflammation, which is one of the leading reasons for heart diseases, including stroke.
Although the body makes a small amount of choline naturally, it is not sufficient to meet daily needs. The recommended Daily Value (DV) for choline is 550 mg. This amount typically needs to be obtained through diet or supplements.
While it’s possible to get enough choline through food, certain groups, such as older adults or those following a plant-based diet, may find it challenging. In such cases, supplements may be considered. However, not all multivitamins provide sufficient choline, so selecting a specific choline supplement — ideally around 300 mg — could be necessary. Consulting with a healthcare provider before starting supplements is always advisable.
There are many common food that contains choline, some of them include:
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Often tossed aside without a second thought, banana peels make up nearly 35% of the ripe fruit’s total weight. Yet, they are not only edible but also brimming with nutrients that could offer significant health benefits. Incorporating banana peels into your diet is an easy way to boost your intake of vitamins and minerals while contributing to efforts against food waste.
Banana peels are rich in key nutrients such as potassium, dietary fiber, polyunsaturated fats, and essential amino acids. Among these, fiber plays a vital role in promoting digestive health, stabilizing blood sugar levels, and supporting heart health. Meanwhile, the potassium content can help manage blood pressure, protect bone density, and reduce the risk of kidney stone formation.
Research also highlights that banana peels are abundant in antioxidants, particularly when the fruit is unripe. Antioxidants are crucial for combating inflammation and may help protect against chronic diseases such as heart disease, cancer, and diabetes. Therefore, integrating banana peels into meals can add a powerful nutritional punch.
However, there are a few considerations to keep in mind. Conventional bananas are often treated with pesticides, and while peeling the fruit usually minimizes exposure, consuming the peel could lead to higher intake of pesticide residues. Pesticide exposure has been associated with health risks including autism, certain cancers, hypertension, diabetes, and cognitive decline. To minimize this risk, it is advisable to choose organic bananas whenever possible and to wash the peels thoroughly before use.
Another potential drawback is the taste and texture of banana peels, which some people find unappealing due to their bitterness and toughness. Opting for very ripe bananas and cooking the peels can help make them softer and sweeter, improving their palatability.
For those willing to experiment, banana peels can be prepared in various delicious ways. Start by selecting ripe bananas, washing the peels carefully, and removing the stem. The peels can then be blended into smoothies or added to banana bread batter. Cooking methods like baking, boiling, or frying not only soften the peels but also make them suitable for savory dishes. In fact, cooked banana peels have been used as substitutes for bacon or pulled pork in plant-based recipes. They can also enhance stir-fries, curries, and sandwiches, adding both flavor and nutritional value.
Incorporating banana peels into your diet is not just about maximizing nutrition—it’s also a step toward sustainable eating. They offer an innovative way to reduce food waste while supplying a range of important nutrients. Whether blended into a smoothie or cooked into a hearty dish, banana peels can add a nutritious and eco-friendly twist to your meals.
By making simple adjustments, like opting for organic bananas and experimenting with recipes, you can tap into the nutritional benefits of banana peels and make your diet more sustainable and health-conscious.
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