I generally don’t subscribe to the idea of superfoods. While I’ll try your obscure Amazonian berry that spent a fortnight fermenting in a capybara’s colon, I won’t join your pyramid scheme to help sell it. I may very well add a teaspoon of gelatinized maca  root to my smoothie, but I won’t claim it’s responsible for my great health. These foods are perfectly nutritious, contain impressive levels of some unique phytonutrients, and often have robust clinical support as inclusions in healthy diets. But c’mon: who’s regularly eating goji berries for $15 a pound? They’re not even that great.
I’m far more interested in the regular “superfoods.” The normal foods that we don’t necessarily consider super. The ones that are just there but have incredible health benefits just the same.
So, don’t expect to see dried Himalayan mulberries, killer bee pollen, or raw cacao  nibs on this list. Or grass-fed beef liver , or pastured eggs , or any of the other animal foods we cherish and exalt in the Primal community. Those have been covered to death. It’s time to highlight the regular, everyday foods we probably take for granted.
We forget about the onion, don’t we? But there it is, wherever you go and whatever you eat. From France’s mirepoix (carrots, onions, celery), Spain’s sofrito (onion, garlic, tomatoes), cajun cuisine’s trinity (onion, celery, bell peppers), Italy’s battuto (carrots, onions, celery), onions form the base of many of the world’s great cuisines. Go have a curry  in an Indian restaurant, and you’ll have onions. But they don’t just taste good. They possess incredible health effects of which most people are unaware. And they’re dirt cheap and fairly hardy at room temperature. There’s no reason not to keep a big bag of them around.
- Onions are a great source of flavonoids that you really can’t get anywhere else  and may be responsible for the protective association  between onions and pancreatic cancer. These flavonoids increase with exposure to air and are fairly resistant to heat exposure , with frying reducing their effectiveness by 33% and baking reducing it by zero.
- Raw onion juice (not for the faint of heart) may even boost testosterone  and male fertility. Rats who drank raw onion juice for a few weeks tripled their testosterone levels  and improved their sperm count and motility.
- Around 100 grams of raw red onions per day helped overweight and obese women with polycystic ovary syndrome improve  their lipid profiles.
For best results, cut your onions and allow them to sit  in the open air for five to ten minutes before applying heat or eating.
It’s delicious, sure. Everyone loves its pungency and bite, of course. But while many may be peripherally aware that garlic is a healthy ingredient, I don’t think they really understand the degree to which it can elicit favorable changes to our health. Let’s take a look.
- Garlic can improve arterial elasticity in the elderly , and it is being investigated as a legitimate treatment  for hypertension.
- Its consumption is significantly associated  with reductions in gastric cancer risk. In vitro and animal studies have identified plausible anti-cancer mechanisms that may explain these associations.
- Along with onions, a garlic-based marinade  reduces the formation of carcinogenic compounds  in cooked meat.
- Garlic reduces LDL oxidation .
- Garlic can improve immune function  and reduce the occurrence  of common colds. If I feel a cold coming on, I’ll crush and dice up an entire head of garlic and lightly simmer it in a big mug of bone broth . I find I am usually able to ward off whatever’s headed my way. Of course, that’s just an anecdote and the available evidence is more equivocal .
As for prep, same goes for garlic as onions. After crushing, cutting, or otherwise rupturing its cellular membranes, allow garlic to sit for a few minutes to increase enzymatic conversion.
If you’re after the health benefits, raw, crushed/chopped garlic is the best source. But go ahead and cook away, too. An effective dose is between 1-3 cloves, although more may increase benefits.
Along with garlic, ginger is a cornerstone of Asian cooking. Korean, Chinese, Thai, Japanese–all the major ones employ it liberally. A lot of people profess to hate ginger (on the other hand, arguably just as many profess their undying love), yet chances are they enjoy a food that has ginger as a vital ingredient. I’ve got a pal who claims to hate ginger. Yet he loves Korean-style short ribs , teriyaki chicken, and claims to want to one day retire in Thailand just for the food. He actually loves ginger without realizing it. Too much ginger can stand out, sure. But the right amount can ingratiate even the most vociferous haters of ginger to its inclusion in a dish.
Ginger isn’t just a culinary tool.
- Ginger is effective against nausea , particularly morning sickness-related  and chemotherapy-induced  nausea.
- In people at risk for colon cancer, ginger reduces  biomarkers of colonic inflammation .
- Ginger can reduce osteoarthritis-related pain, about as much as ibuprofen .
- It can increase HDL and lower LDL .
- In middle aged women, it improves cognitive function .
- It’s good for male fertility , reducing semen lipid oxidation, increasing sperm motility and count, and increasing ejaculate volume in infertile men.
A teaspoon of raw grated ginger is an “active” dose. I’ll often add several heaping teaspoons to the garlic broth I mentioned above, toss a few chunks into smoothies, or make ginger lemon tea (hot water, lots of ginger, and fresh lemon juice). And of course, I cook with it.
Black pepper just might be the most ubiquitous spice in existence. It’s so common that we don’t even really think of it as a spice. We just add it to everything, almost absentmindedly. There’s no better way to season a steak than with salt and black pepper.
Ever notice how black pepper goes with everything ? You can make French, Indian, Italian, or American food and be confident that the recipe will call for significant amounts of black pepper. And even if it doesn’t explicitly request it, black pepper usually works. Some cuisines, like Chinese, favor white pepper, which is just black pepper with the black hull removed. It’s the same plant.
Black pepper goes with everything in another sense, too: a primary black pepper compound known as piperine enhances bioavailability of certain plant compounds. Black pepper is basically like Steve Nash, Jason Kidd, John Stockton, or Magic Johnson; it makes the other spices/players better.
- The curcumin found in turmeric becomes more bioavailable  in the presence of piperine.
- Piperine makes reseveratrol more bioavailable .
- Piperine also potentiates sodium .
- On its own, piperine can reduce lipid oxidation  and increase antioxidant capacity.
Do what I do: grind a ton of black pepper into everything you eat. It’s possible that I use entirely too much, but it tastes great and it’s probably making the rest of the food even more nutritious.
When significant portions of three continents consume olives  and olive oil as an irreplaceable staple food, there’s something going on. Heck, the love for olives crosses sociopolitical boundaries. It shatters them. Spend a week in Israel and you’ll eat olives or olive oil with just about every meal. Hop the border into Gaza and you’ll find people who, despite the diametrically opposed political and religious views and drastically different living conditions, will also be eating olives and guzzling their oil. It’s like that for the entire region. From Portugal to Spain to the south of France to Italy to Cyprus to Greece to Turkey to Lebanon to Syria to Jordan and up through Tunisia, Morocco, Algeria, Libya, it’s olives and olive oil.
To most of us, olive oil is just something we use to cook and dress salads. To our physiologies, especially our cardiovascular system, it’s a lifesaver.
- Olive oil inhibits LDL oxidation and improves cardiometabolic risk factors . When you eat it, your LDL either becomes more resistant to oxidation via fortification with olive phenols, the internal environment becomes less oxidatively stressful, or both  (most likely).
- Consuming olive oil makes your HDL more effective .
- Olive phenols may be effective  anti-Alzheimer’s agents.
Bananas get short shrift in many health circles. Maybe it’s because they’re fairly dense in carbs, which can be problematic for folks trying to lose weight. Maybe the 30-bananas-a-day crowd sullied their good name. But bananas aren’t just bananas, and they aren’t even always high-(digestible)carb. I consider them a spectrum of fruits. You’ve got the green banana, a crispy fruit full of fermentable fiber (a green banana can contain up to 25-30 grams of resistant starch ) and very little digestible carbohydrate. You’ve got the ripe banana, a delicious source of carbohydrates for people who need them. They make great post-workout treats, for example. And then you’ve got the half-ripe banana, which has moderate amounts of both resistant starch and digestible carbohydrate.
- Unbeknownst to most, bananas are underrated sources of antioxidant compounds .
- They’re rich in potassium, an important mineral for cardiovascular and endothelial health .
- And though I wouldn’t recommend a banana-based diet for these populations, daily consumption  of sweet, ripe bananas has beneficial effects on fasting blood glucose in hyperlipidemic subjects and serum adiponectin in type 2 diabetics.
- Most importantly, the resistant starch  in green bananas passes through the gut undigested to become fodder for beneficial colonic bacteria, who produce butyrate , improve immune  and digestive health , and do much, much more .
Frozen, both green and ripe bananas are excellent in smoothies. A single green one will provide most of the resistant starch you need for the day. They turn to ripe bananas quickly, though, so eat or freeze them.
And hey, opossums go absolutely bananas for bananas .
The existence of these hidden superfoods means you don’t have to spend outrageous sums on more conventional superfoods. You can eat normal meals with regular ingredients and derive many of the same benefits.
Now let’s hear from you guys. What’s your favorite hidden superfood?
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