Everyone has their go-to grocery items or staples—whether it’s a bunch of leafy greens, a loaf of whole grain bread or cans of beans you keep in your pantry “just in case.” But sticking to a narrow range of ingredients often means missing out on lesser-known foods that offer impressive nutritional advantages. Many of the healthiest foods available are often overlooked in favor of more familiar options, despite offering exceptional benefits.
What you buy affects not just your meals but also your long-term health. By expanding your grocery list with these often underappreciated ingredients, you get a broader mix of fiber, vitamins, minerals, healthy fats, and plant compounds that support everything from digestion to inflammation control. What follows isn’t just another list of “good-for-you” groceries. These 20 underrated foods deserve a spot in your regular rotation—not just for their flavor, but for how efficiently they fuel, protect, and restore your body.

Red Onion

Rich in sulfur compounds and the antioxidant quercetin, red onion provides natural anti-inflammatory effects that support heart health and immune regulation. It contains vitamins C and B6, as well as folate and potassium, all of which contribute to nerve function and tissue repair. The red pigment in its layers also gives it a higher antioxidant capacity compared to white or yellow varieties. Including red onion in your meals may aid blood sugar control and reduce bad cholesterol levels. It’s especially beneficial when eaten raw or lightly cooked, as heat can reduce some of its health-boosting compounds.
Capers

Capers are rich in flavonoids and polyphenols, which function as antioxidants to help neutralize cell-damaging free radicals. They’re particularly high in quercetin and rutin, compounds that may reduce oxidative stress and inflammation. Capers also contain small amounts of iron and fiber, supporting both circulation and digestive health. Because they’re preserved in vinegar or brine, they can also offer mild digestive benefits by encouraging enzyme activity. Their bold flavor allows you to use them sparingly while still gaining their nutritional perks.
Arugula

Arugula belongs to the cruciferous family and contains glucosinolates, which are broken down into compounds that support detoxification and cancer prevention. It’s high in vitamin K for bone maintenance and provides folate, calcium, and nitrates that support cardiovascular health. Arugula also contains erucin, a compound associated with lowering blood pressure. The peppery flavor encourages mindful eating and pairs well with heart-healthy fats like olive oil, enhancing nutrient absorption. It’s low in calories and perfect for raw use to preserve its active compounds.
Watercress

One of the oldest known leafy greens consumed by humans, watercress contains high levels of vitamins A, C, and K, as well as minerals like calcium and magnesium. Its natural compounds, such as isothiocyanates, have been linked to reduced DNA damage and protection against carcinogens. This green also supports liver health and promotes better digestion due to its mild diuretic effect. Watercress helps regulate oxidative stress and contributes to bone and immune function. Use it raw for maximum benefit, especially in sandwiches or salads.
Brussels Sprouts

Glucosinolates found in Brussels sprouts convert into biologically active compounds that aid liver detox and may help slow the growth of cancer cells. These cruciferous vegetables are also an excellent source of vitamin C and K, both essential for collagen production and blood clotting. Fiber content in sprouts supports gut health, while their antioxidant load helps reduce inflammation. They’re known to support insulin regulation and help with maintaining steady energy levels. Whether roasted or shaved raw, they offer versatility and nutrition in every bite.
Kale

Kale contains powerful antioxidants like kaempferol and beta-carotene, which contribute to reduced inflammation and oxidative stress. Its dense vitamin K content plays a role in cardiovascular protection and bone density. Iron and vitamin C found in kale aid oxygen transport and collagen synthesis, making it valuable for skin and immune function. Unlike other greens, it also contains alpha-linolenic acid, a plant-based omega-3 fatty acid that supports heart health. Cooking it lightly or massaging it raw helps make its nutrients more bioavailable.
Millet

A naturally gluten-free grain, millet is a source of slow-digesting carbohydrates that support blood sugar stability. It contains magnesium, which plays a role in muscle function and glucose metabolism. Rich in polyphenols and antioxidants, millet also supports cellular repair and lowers inflammation. Its phosphorus content helps build strong bones and maintain kidney function. You can prepare it similarly to rice or use it in porridge, adding both texture and nutrition to your meals.
Sweet Potatoes

Sweet potatoes provide a significant dose of beta-carotene, which the body converts into vitamin A to support vision and immune health. The fiber content promotes healthy digestion and reduces blood sugar spikes due to its low glycemic load. They also contain potassium and manganese, important for muscle function and enzyme activation. Anthocyanins in purple varieties offer additional antioxidant effects for brain and cellular health. Baking or boiling them with the skin retains most of their nutrients.
Tofu

As a complete plant protein, tofu provides all nine essential amino acids your body needs for muscle repair and enzyme function. It’s rich in isoflavones, which may help regulate hormonal balance and protect against certain cancers. Tofu is also a source of iron and calcium, making it valuable for bone maintenance and oxygen transport. Its unsaturated fat content supports heart health, particularly when replacing animal-based protein sources. Versatile in flavor, tofu adapts well to both savory and sweet recipes.
Mushrooms

Mushrooms are a rare plant-based source of vitamin D when exposed to UV light, supporting bone health and immunity. Beta-glucans in mushrooms help regulate blood sugar and stimulate immune cell activity. They’re rich in selenium and ergothioneine, antioxidants that reduce oxidative stress and inflammation. Low in calories and high in fiber, mushrooms can support weight management and gut health. Different types offer specific benefits, such as lion’s mane for cognitive support and shiitake for cholesterol regulation.
Lentils

Lentils are loaded with plant-based protein, fiber, and polyphenols that protect against metabolic and cardiovascular diseases. Folate found in lentils is essential for red blood cell formation and helps prevent neural tube defects during pregnancy. They also contribute to cholesterol management by improving lipid profiles. High potassium levels aid in regulating blood pressure and fluid balance. Their versatility makes them ideal for soups, salads, or even veggie patties.
Lupin Beans

Lupin beans offer one of the highest protein contents among legumes, along with prebiotic fiber that feeds beneficial gut bacteria. The combination of omega-3 and omega-6 fatty acids contributes to heart and brain function. These beans also contain magnesium, zinc, and phosphorus, all vital for energy metabolism and bone integrity. Studies suggest lupin may aid in controlling blood glucose and reducing LDL cholesterol. They’re typically eaten as a snack after soaking and boiling or found in lupin flour form.
Chickpeas

Chickpeas are a powerhouse of soluble fiber, which helps lower LDL cholesterol and improve digestion. Their protein and iron content support muscle development and oxygen transport, particularly in plant-based diets. Naturally rich in manganese and folate, they also play a role in bone and cell health. Regular consumption has been linked to improved blood sugar control and reduced inflammation. Blend them into spreads or roast for a crunchy, satisfying snack.
Popcorn

Air-popped popcorn is a whole grain that provides polyphenols, plant compounds known for antioxidant effects. It’s naturally low in fat and calories, making it a weight-friendly snack when prepared without added oil or sugar. The insoluble fiber in popcorn promotes regular bowel movements and supports gut microbiome diversity. Magnesium and phosphorus contribute to muscle and bone strength. It’s one of the few snack foods that offer both crunch and nutritional benefit in one serving.
Mangoes

Mangoes are packed with vitamin C, supporting collagen formation and immune defense. Beta-carotene present in their bright orange flesh is converted into vitamin A, which protects eyesight and promotes skin regeneration. They also contain digestive enzymes like amylases that help break down carbohydrates efficiently. Polyphenols in mangoes may reduce markers of inflammation and support metabolic health. Eating them fresh or frozen adds natural sweetness and nutrients without added sugars.
Blueberries

Anthocyanins in blueberries are linked to reduced oxidative stress and improved blood vessel function. The fruit is a source of fiber, vitamin K, and manganese, supporting bone development and gut health. Consistent intake has been associated with lower risks of cognitive decline and heart disease. Blueberries also contain resveratrol and flavonols that contribute to metabolic stability. Frozen or fresh, they retain most of their nutritional value and are easy to add to smoothies, cereals, or salads.
Pistachios

Pistachios deliver plant protein, fiber, and healthy monounsaturated fats, all of which support weight management and heart health. They provide lutein and zeaxanthin, antioxidants that filter harmful blue light and maintain eye health. Vitamin B6 helps regulate mood and supports immune responses. Compared to other nuts, pistachios offer more potassium and fewer calories per serving. Eating them with the shells on can also encourage slower, more mindful snacking.
Brazil Nuts

Just one Brazil nut can supply more than the daily recommended intake of selenium, a trace mineral that boosts thyroid function and DNA repair. They’re rich in healthy fats and magnesium, which aid in cardiovascular regulation and energy production. The high antioxidant activity may help lower inflammation and protect brain cells from oxidative damage. Brazil nuts also support reproductive health through zinc and vitamin E. Because of their potent selenium content, moderation is key—just one or two per day is enough.
Dark Chocolate

Dark chocolate, when consumed in moderation, is packed with antioxidants and essential minerals such as magnesium, copper, and iron. Studies suggest it can help lower blood pressure, improve heart health, and even boost brain function due to its high flavonoid content. Opt for varieties with at least 70% cocoa to reap the most health benefits. Dark chocolate is a great way to satisfy your sweet tooth while supporting cardiovascular and cognitive health.
Sardines

Sardines may be an underappreciated fish, but they’re a powerhouse of nutrition. Rich in omega-3 fatty acids, they help increase “good” cholesterol and reduce triglyceride levels, which can reduce the risk of cardiovascular diseases. Sardines are one of the rare foods that naturally contain vitamin D, a nutrient typically obtained from sunlight exposure. These small fish are also an excellent source of calcium, iron, and protein. Enjoy them grilled, baked, or even straight from the can for a quick, nutrient-packed meal.
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15 Foods That That May Help Ease Nighttime Anxiety

While therapy, mindfulness, and even medication are all valuable tools, what you eat may also have a surprising impact on how your brain and body handle stress—especially in the evening. Certain foods are rich in nutrients that help regulate mood, improve sleep quality, and reduce stress hormones. It’s not about finding a magic cure in your fridge, but supporting your nervous system in small ways that add up over time. If you’re looking for easy, natural ways to calm your mind at night, here are 15 foods that may actually help make that happen.
Tamara Tsaturyan is the owner and writer of Thriving In Parenting, a website focused on providing simple tips for busy parents — easy and healthy recipes, home decor and organization ideas and all things P A R E N T I N G.
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