
Make Your Vegetables Work Better Nutritionally
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Most people know that boiling vegetables to death is generally not best for them, but raw isn’t always best either, and if we want to not sabotage our food, then there’s more to bear in mind than “just steam them, then”.
So, what should we keep in mind?
Water solubility
Many nutrients are water-soluble, including vitamin C, vitamin B-complex (as in, the collection of B-vitamins), and flavonoids, as well as many other polyphenols.
This means that if you cook your vegetables (which includes beans, lentils, etc) in water, a lot of the nutrients will go into the water, and be lost if you then drain that.
There are, thus, options;
- Steaming, yes
- Use just enough water to slow-cook or pressure-cook things that are suitable for slow-cooking, or pressure-cooking such as those beans and lentils. That way, when it’s done, there’s no excess water to drain, and all the nutrients are still in situ.
- Use as much water as you like, but then keep the excess water to make a soup, sauce, or broth.
- Use a cooking method other than water, where appropriate. For example, roasting peppers is a much better idea than roasting dried pulses.
- Consume raw, where appropriate.
Fat solubility
Many nutrients are fat-soluble, including vitamins A, D, E, and K, as well as a lot of carotenoids (including heavy-hitters lycopene and β-carotene) and many other polyphenols.
We’re now going to offer almost the opposite advice to that we had about water solubility. This is because unless they are dried, vegetables already contain water, whereas many contain only trace amounts of fat. Consequently, the advice this time is to add fat.
There are options:
- Cook with a modest amount of your favorite healthy cooking oil (our general go-to is extra-virgin olive oil, but avocado oil is great especially for higher temperature cooking, and an argument can be made for coconut oil sometimes)
- Remember that this goes for roasting, too. Brush those vegetables with a touch of olive oil, and not only will they be delicious, they’ll be more nutritious, too.
- Drizzle some the the above, if you’re serving things raw and it’s appropriate. This goes also for things like salads, so dress them!
- Enjoy your vegetables alongside healthy fatty foods such as nuts and seeds (or fatty animal products, if you eat those; fatty fish is a fine option here, in moderation, as are eggs, or fermented dairy products).
For a deeper understanding: Can Saturated Fats Be Healthy?
Do not, however, deep-fry your foods unless it’s really necessary and then only for an occasional indulgence that you simply accept will be unhealthy. Not only is deep-frying terrible for the health in a host of ways (ranging from an excess of oil in the resultant food, to acrylamide, to creating Advanced Glycation End-products*), but also those fat-soluble nutrients? Guess where they’ll go. And unlike with the excess vegetable-cooking water that you can turn into soup or whatever, we obviously can’t recommend doing that with deep-fryer oil.
*see also: Are You Eating AGEs?
Temperature sensitivity
Many nutrients are sensitive to temperature, including vitamin C (breaks down when exposed to high temperatures) and carotenoids (are released when exposed to higher temperatures). Another special case is ergothioneine, “the longevity vitamin” that’s not a vitamin, found in mushrooms, which is also much more bioavailable when cooked.
So, if you’re eating something for vitamin C, then raw is best if that’s a reasonable option.
And if it’s not a reasonable option? Well, then you can either a) just cope with the fact it’s going to have less vitamin C in it, or b) cook it as gently and briefly as reasonably possible.
On the other hand, if you’re eating something for carotenoids (especially including lycopene and β-carotene), or ergothioneine, then cooked is best.
Additionally, if your food is high in oxalates (such as spinach), and you don’t want it to be (for example because you have kidney problems, which oxalates can exacerbate, or would like to get more calcium out of the spinach and into your body, which which oxalic acid would inhibit), then cooked is best, as it breaks down the oxalates.
Same goes for phytates, another “anti-nutrient” found in some whole grains (such as rice and wheat); cooking breaks it down, therefore cooked is best.
This latter is not, however, applicable in the case of brown rice protein powder, for those who enjoy that—because phytates aren’t found in the part of the rice that’s extracted to make that.
And as for brown rice itself? Does contain phytates… Which can be reduced by soaking and heating, preferably both, to the point that the nutritional value is better than it would have been had there not been phytic acid present in the first place; in other words: cooked is best.
You may be wondering: “who is eating rice raw?” and the answer is: people using rice flour.
See: Brown Rice Protein: Strengths & Weaknesses
Want to know more?
Here’s a great rundown from Dr. Rosalind Gibson, Dr. Leah Perlas, and Dr. Christine Hotz:
Improving the bioavailability of nutrients in plant foods at the household level
Enjoy!
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Is stress turning my hair grey?
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When we start to go grey depends a lot on genetics.
Your first grey hairs usually appear anywhere between your twenties and fifties. For men, grey hairs normally start at the temples and sideburns. Women tend to start greying on the hairline, especially at the front.
The most rapid greying usually happens between ages 50 and 60. But does anything we do speed up the process? And is there anything we can do to slow it down?
You’ve probably heard that plucking, dyeing and stress can make your hair go grey – and that redheads don’t. Here’s what the science says.
Oksana Klymenko/Shutterstock What gives hair its colour?
Each strand of hair is produced by a hair follicle, a tunnel-like opening in your skin. Follicles contain two different kinds of stem cells:
- keratinocytes, which produce keratin, the protein that makes and regenerates hair strands
- melanocytes, which produce melanin, the pigment that colours your hair and skin.
There are two main types of melanin that determine hair colour. Eumelanin is a black-brown pigment and pheomelanin is a red-yellow pigment.
The amount of the different pigments determines hair colour. Black and brown hair has mostly eumelanin, red hair has the most pheomelanin, and blonde hair has just a small amount of both.
So what makes our hair turn grey?
As we age, it’s normal for cells to become less active. In the hair follicle, this means stem cells produce less melanin – turning our hair grey – and less keratin, causing hair thinning and loss.
As less melanin is produced, there is less pigment to give the hair its colour. Grey hair has very little melanin, while white hair has none left.
Unpigmented hair looks grey, white or silver because light reflects off the keratin, which is pale yellow.
Grey hair is thicker, coarser and stiffer than hair with pigment. This is because the shape of the hair follicle becomes irregular as the stem cells change with age.
Interestingly, grey hair also grows faster than pigmented hair, but it uses more energy in the process.
Can stress turn our hair grey?
Yes, stress can cause your hair to turn grey. This happens when oxidative stress damages hair follicles and stem cells and stops them producing melanin.
Oxidative stress is an imbalance of too many damaging free radical chemicals and not enough protective antioxidant chemicals in the body. It can be caused by psychological or emotional stress as well as autoimmune diseases.
Environmental factors such as exposure to UV and pollution, as well as smoking and some drugs, can also play a role.
Melanocytes are more susceptible to damage than keratinocytes because of the complex steps in melanin production. This explains why ageing and stress usually cause hair greying before hair loss.
Scientists have been able to link less pigmented sections of a hair strand to stressful events in a person’s life. In younger people, whose stems cells still produced melanin, colour returned to the hair after the stressful event passed.
4 popular ideas about grey hair – and what science says
1. Does plucking a grey hair make more grow back in its place?
No. When you pluck a hair, you might notice a small bulb at the end that was attached to your scalp. This is the root. It grows from the hair follicle.
Plucking a hair pulls the root out of the follicle. But the follicle itself is the opening in your skin and can’t be plucked out. Each hair follicle can only grow a single hair.
It’s possible frequent plucking could make your hair grey earlier, if the cells that produce melanin are damaged or exhausted from too much regrowth.
2. Can my hair can turn grey overnight?
Legend says Marie Antoinette’s hair went completely white the night before the French queen faced the guillotine – but this is a myth.
It is not possible for hair to turn grey overnight, as in the legend about Marie Antoinette. Yann Caradec/Wikimedia, CC BY-NC-SA Melanin in hair strands is chemically stable, meaning it can’t transform instantly.
Acute psychological stress does rapidly deplete melanocyte stem cells in mice. But the effect doesn’t show up immediately. Instead, grey hair becomes visible as the strand grows – at a rate of about 1 cm per month.
Not all hair is in the growing phase at any one time, meaning it can’t all go grey at the same time.
3. Will dyeing make my hair go grey faster?
This depends on the dye.
Temporary and semi-permanent dyes should not cause early greying because they just coat the hair strand without changing its structure. But permanent products cause a chemical reaction with the hair, using an oxidising agent such as hydrogen peroxide.
Accumulation of hydrogen peroxide and other hair dye chemicals in the hair follicle can damage melanocytes and keratinocytes, which can cause greying and hair loss.
4. Is it true redheads don’t go grey?
People with red hair also lose melanin as they age, but differently to those with black or brown hair.
This is because the red-yellow and black-brown pigments are chemically different.
Producing the brown-black pigment eumelanin is more complex and takes more energy, making it more susceptible to damage.
Producing the red-yellow pigment (pheomelanin) causes less oxidative stress, and is more simple. This means it is easier for stem cells to continue to produce pheomelanin, even as they reduce their activity with ageing.
With ageing, red hair tends to fade into strawberry blonde and silvery-white. Grey colour is due to less eumelanin activity, so is more common in those with black and brown hair.
Your genetics determine when you’ll start going grey. But you may be able to avoid premature greying by staying healthy, reducing stress and avoiding smoking, too much alcohol and UV exposure.
Eating a healthy diet may also help because vitamin B12, copper, iron, calcium and zinc all influence melanin production and hair pigmentation.
Theresa Larkin, Associate Professor of Medical Sciences, University of Wollongong
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Edamame vs Natto – Which is Healthier?
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Our Verdict
When comparing edamame to nattō, we picked the nattō.
Why?
Yes, they are both soy beans, but in the battle of young and green vs old and fermented, there are some important differences:
In terms of macros, nattō has nearly 2x the protein for only slightly more carbs, and slightly more fiber, as well as more fat, but it’s not much and it’s a healthy profile, mostly polyunsaturated. All in all, a win for nattō in the macros category.
In the category of vitamins, edamame has more of vitamins B1, B5, B9, E, and K, while nattō has more of vitamins B2, B6, and C, this a 5:3 win for edamame in this round.
When it comes to minerals, edamame is not higher in any minerals, while nattō has more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc. An overwhelming win for nattō.
A word on phytoestrogens: soy in general contains these, including both of these iterations of soy, and/but the human body can’t use plant estrogens as such. What it can do, however, is break them down and use the bits to make human estradiol, if and only if you have ovaries that are present and operational (so, no menopause and/or bilateral ovariectomy). Either way, there’s nothing to set one ahead of the other in this matter in this head-to-head.
As an extra point in nattō’s favor, nattō is, like many fermented foods, extra-good for gut health by bringing a wealth of beneficial bacteria. Edamame is also good for gut health (just by virtue of being an edible plant and containing fiber), but not on the same level as nattō.
Adding up the sections makes a clear win for nattō, but by all means enjoy either or both—diversity is good!
Want to learn more?
You might like:
21% Stronger Bones in a Year at 62? Yes, It’s Possible (No Calcium Supplements Needed!) ← nattō features in the method!
Enjoy!
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Cooling Bulgarian Tarator
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The “Bulgarian” qualifier is important here because the name “tarator” is used to refer to several different dishes from nearby-ish countries, and they aren’t the same. Today’s dish (a very healthy and deliciously cooling cucumber soup) isn’t well-known outside of Bulgaria, but it should be, and with your help we can share it around the world. It’s super-easy and takes only about 10 minutes to prepare:
You will need
- 1 large cucumber, cut into small (¼” x ¼”) cubes or small (1″ x ⅛”) batons (the size is important; any smaller and we lose texture; any larger and we lose the balance of the soup, and also make it very different to eat with a spoon)
- 2 cups plain unsweetened yogurt (your preference what kind; live-cultured of some kind is best, and yes, vegan is fine too)
- 1½ cup water, chilled but not icy (fridge-temperature is great)
- ½ cup chopped walnuts (substitutions are not advised; omit if allergic)
- ½ bulb garlic, minced
- 3 tbsp fresh dill, chopped
- 2 tbsp extra virgin olive oil
- 1 tsp black pepper, coarse ground
- ½ tsp MSG* or 1 tsp low-sodium salt
Method
(we suggest you read everything at least once before doing anything)
1) Mix the cucumber, garlic, 2 tbsp of the dill, oil, MSG-or-salt and pepper in a big bowl
2) Add the yogurt and mix it in too
3) Add the cold water slowly and stir thoroughly; it may take a minute to achieve smooth consistency of the liquid—it should be creamy but thin, and definitely shouldn’t stand up by itself
4) Top with the chopped nuts, and the other tbsp of dill as a garnish
5) Serve immediately, or chill in the fridge until ready to serve. It’s perfect as a breakfast or a light lunch, by the way.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- How To Really Look After Your Joints ← this is about how cucumber has phytochemicals that outperform glucosamine and chondroitin by 200%, at 1/135th of the dose
- Making Friends With Your Gut (You Can Thank Us Later)
- Is Dairy Scary? ← short answer in terms of human health is “not if it’s fermented”
- Why You Should Diversify Your Nuts!
- The Many Health Benefits Of Garlic
- Is “Extra Virgin” Worth It?
- Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
- Monosodium Glutamate: Sinless Flavor-Enhancer Or Terrible Health Risk? ← *for those who are worried about the health aspects of MSG; it is healthier and safer than table salt
Take care!
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Gut-Positive Pot Noodles
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Everything we consume either improves our health a little or worsens it. Pot noodles aren’t generally the healthiest foods, but these ones sure are! There’s quite a range of fiber in this, including the soluble fiber of the noodles themselves (which are, in fact, mostly fiber and water). As a bonus, the glucomannan in the noodles promotes feelings of fullness, notwithstanding its negligible carb count. Of course, the protein in the edamame beans also counts for satiety!
You will need
- ½ cup konjac noodles (also called shirataki), tossed in 1 tsp avocado oil (or sesame oil, if you don’t have avocado)
- 2 oz mangetout, thinly sliced
- 1 oz edamame beans
- ¼ carrot, grated
- 2 baby sweetcorn, cut in half lengthways
- 1 scallion, finely diced
- 1 heaped tsp crunchy peanut butter (omit if allergic)
- 1 tsp miso paste
- 1 tsp chili oil
- 1 tsp black pepper, coarse ground
- 1 tsp peeled-and-grated ginger
Method
(we suggest you read everything at least once before doing anything)
1) Layer a heat-resistant jar (mason jars are usually quite resistant to temperature changes) with the noodles and vegetables.
2) Combine the peanut butter, miso paste, and chili oil, black pepper, and ginger in a small bowl. Pour this dressing over the layered vegetables and noodles, and screw the lid on. Refrigerate until needed.
3) Add hot water to the jar and stir, to serve. If you prefer the vegetables to be more cooked, you can microwave (without the lid!) for a minute or two.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Making Friends With Your Gut (You Can Thank Us Later)
- Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
- 10 Ways To Balance Blood Sugars ← today’s recipe makes a perfect high-fiber, low-carb starter, per the hacks here
- Capsaicin For Weight Loss And Against Inflammation
- Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
- Ginger Does A Lot More Than You Think
Take care!
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The Kitchen Doctor
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Dr. Rupy Aujla: The Kitchen Doctor
This is Dr. Rupy Aujla, and he’s a medical doctor. He didn’t set out to become a “health influencer”.
But then, a significant heart condition changed his life. Having a stronger motivation to learn more about nutritional medicine, he did a deep dive into the scientific literature, because that’s what you do when your life is on the line, especially if you’re a doctor!
Using what he learned, he was able to reverse his condition using a food and lifestyle approach. Now, he devotes himself to sharing what he learned—and what he continues to learn as he goes along.
One important thing he learned because of what happened to him, was that he hadn’t been paying enough attention to what his body was trying to tell him.
He wants us to know about interoception—which isn’t a Chris Nolan movie. Rather, interoception is the sense of what is going on inside one’s own body.
The counterpart of this is exteroception: our ability to perceive the outside world by means of our various senses.
Interoception is still using the senses, but is sensing internal body sensations. Effectively, the brain interprets and integrates what happens in our organs.
When interoception goes wrong, researchers found, it can lead to a greater likelihood of mental health problems. Having an anxiety disorder, depression, mood disorder, or an eating disorder often comes with difficulties in sensing what is going on inside the body.
Improving our awareness of body cues
Those same researchers suggested therapies and strategies aimed at improving awareness of mind-body connections. For example, mindfulness-based stress reduction, yoga, meditation and movement-based treatments. They could improve awareness of body cues by attending to sensations of breathing, cognitions and other body states.
But where Dr. Aujla puts his focus is “the heart of the home”, the kitchen.
The pleasure of food
❝Eating is not simply ingesting a mixture of nutrients. Otherwise, we would all be eating astronaut food. But food is not only a tool for health. It’s also an important pleasure in life, allowing us to connect to others, the present moment and nature.❞
Dr. Rupy Aujla
Dr. Aujla wants to help shift any idea of a separation between health and pleasure, because he believes in food as a positive route to well-being, joy and health. For him, it starts with self-awareness and acceptance of the sensory pleasures of eating and nourishing our bodies, instead of focusing externally on avoiding perceived temptations.
Most importantly:
We can use the pleasure of food as an ally to healthy eating.
Instead of spending our time and energy fighting the urge to eat unhealthy things that may present a “quick fix” to some cravings but aren’t what our body actually wants, needs, Dr. Aujla advises us to pay just a little more attention, to make sure the body’s real needs are met.
His top tips for such are:
- Create an enjoyable relaxing eating environment
To help cultivate positive emotions around food and signal to the nervous system a shift to food-processing time. Try setting the table with nothing else on it beyond what’s relevant to the dinner, putting away distractions, using your favorite plates, tablecloth, etc.
- Take 3 deep abdominal breaths before eating
To help you relax and ground yourself in the present moment, which in turn is to prepare your digestive system to receive and digest food.
- Pay attention to the way you sit
Take some time to sit comfortably with your feet grounded on the floor, not slouching, to give your stomach space to digest the food.
- Appreciate what it took to bring this food to your plate
Who was involved in the growing process and production, the weather and soil it took to grow the food, and where in the world it came from.
- Enjoy the sensations
When you’re cooking, serving, and eating your food, be attentive to color, texture, aroma and even sound. Taste the individual ingredients and seasonings along the way, when safe and convenient to do so.
- Journal
If you like journaling, you can try adding a mindful eating section to that. Ask questions such as: “how did I feel before, during, and after the meal?”
In closing…
Remember that this is a process, not only on an individual level but as a society too.
Oftentimes it’s hard to eat healthily… We can be given to wonder even “what is healthy, after all?”, and we can be limited by what is available, what is affordable, and what we have time to prepare.
But if we make a conscious commitment to make the best choices we reasonably can as we go along, then small changes can soon add up.
Interested in what kind of recipes Dr. Aujla goes for?
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Quercetin Quinoa Probiotic Salad
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
This quercetin-rich salad is a bit like a tabbouleh in feel, with half of the ingredients switched out to maximize phenolic and gut-healthy benefits.
You will need
- ½ cup quinoa
- ½ cup kale, finely chopped
- ½ cup flat leaf parsley, finely chopped
- ½ cup green olives, thinly sliced
- ½ cup sun-dried tomatoes, roughly chopped
- 1 pomegranate, peel and pith removed
- 1 preserved lemon, finely chopped
- 1 oz feta cheese or plant-based equivalent, crumbled
- 1 tsp black pepper, coarse ground
- 1 tbsp capers
- 1 tbsp chia seeds
- 1 tbsp extra virgin olive oil
Note: you shouldn’t need salt or similar here, because of the diverse gut-healthy fermented products bringing their own salt with them
Method
(we suggest you read everything at least once before doing anything)
1) Rinse the quinoa, add the tbsp of chia seeds, cook as normal for quinoa (i.e. add hot water, bring to boil, simmer for 15 minutes or so until pearly and tender), carefully (don’t lose the chia seeds; use a sieve) drain and rinse with cold water to cool. Shake off excess water and/or pat dry on kitchen paper if necessary.
2) Mix everything gently but thoroughly.
3) Serve:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Tasty Tabbouleh with Tahini ← in case you want an actual tabbouleh
- Making Friends With Your Gut (You Can Thank Us Later)
- Fight Inflammation & Protect Your Brain, With Quercetin
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
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