When can my baby drink cow’s milk? It’s sooner than you think
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Parents are often faced with well-meaning opinions and conflicting advice about what to feed their babies.
The latest guidance from the World Health Organization (WHO) recommends formula-fed babies can switch to cow’s milk from six months. Australian advice says parents should wait until 12 months. No wonder some parents, and the health professionals who advise them, are confused.
So what do parents need to know about the latest advice? And when is cow’s milk an option?
What’s the updated advice?
Last year, the WHO updated its global feeding guideline for children under two years old. This included recommending babies who are partially or totally formula fed can have whole animal milks (for example, full-fat cow’s milk) from six months.
This recommendation was made after a systematic review of research by WHO comparing the growth, health and development of babies fed infant formula from six months of age with those fed pasteurised or boiled animal milks.
The review found no evidence the growth and development of babies who were fed infant formula was any better than that of babies fed whole, fresh animal milks.
The review did find an increase in iron deficiency anaemia in babies fed fresh animal milk. However, WHO noted this could be prevented by giving babies iron-rich solid foods daily from six months.
On the strength of the available evidence, the WHO recommended babies fed infant formula, alone or in addition to breastmilk, can be fed animal milk or infant formula from six months of age.
The WHO said that animal milks fed to infants could include pasteurised full-fat fresh milk, reconstituted evaporated milk, fermented milk or yoghurt. But this should not include flavoured or sweetened milk, condensed milk or skim milk.
Why is this controversial?
Australian government guidelines recommend “cow’s milk should not be given as the main drink to infants under 12 months”. This seems to conflict with the updated WHO advice. However, WHO’s advice is targeted at governments and health authorities rather than directly at parents.
The Australian dietary guidelines are under review and the latest WHO advice is expected to inform that process.
OK, so how about iron?
Iron is an essential nutrient for everyone but it is particularly important for babies as it is vital for growth and brain development. Babies’ bodies usually store enough iron during the final few weeks of pregnancy to last until they are at least six months of age. However, if babies are born early (prematurely), if their umbilical cords are clamped too quickly or their mothers are anaemic during pregnancy, their iron stores may be reduced.
Cow’s milk is not a good source of iron. Most infant formula is made from cow’s milk and so has iron added. Breastmilk is also low in iron but much more of the iron in breastmilk is taken up by babies’ bodies than iron in cow’s milk.
Babies should not rely on milk (including infant formula) to supply iron after six months. So the latest WHO advice emphasises the importance of giving babies iron-rich solid foods from this age. These foods include:
- meat
- eggs
- vegetables, including beans and green leafy vegetables
- pulses, including lentils
- ground seeds and nuts (such as peanut or other nut butters, but with no added salt or sugar).
You may have heard that giving babies whole cow’s milk can cause allergies. In fact, whole cow’s milk is no more likely to cause allergies than infant formula based on cow’s milk.
What are my options?
The latest WHO recommendation that formula-fed babies can switch to cow’s milk from six months could save you money. Infant formula can cost more than five times more than fresh milk (A$2.25-$8.30 a litre versus $1.50 a litre).
For families who continue to use infant formula, it may be reassuring to know that if infant formula becomes hard to get due to a natural disaster or some other supply chain disruption fresh cow’s milk is fine to use from six months.
It is also important to know what has not changed in the latest feeding advice. WHO still recommends infants have only breastmilk for their first six months and then continue breastfeeding for up to two years or more. It is also still the case that infants under six months who are not breastfed or who need extra milk should be fed infant formula. Toddler formula for children over 12 months is not recommended.
All infant formula available in Australia must meet the same standard for nutritional composition and food safety. So, the cheapest infant formula is just as good as the most expensive.
What’s the take-home message?
The bottom line is your baby can safely switch from infant formula to fresh, full-fat cow’s milk from six months as part of a healthy diet with iron-rich foods. Likewise, cow’s milk can also be used to supplement or replace breastfeeding from six months, again alongside iron-rich foods.
If you have questions about introducing solids your GP, child health nurse or dietitian can help. If you need support with breastfeeding or starting solids you can call the National Breastfeeding Helpline (1800 686 268) or a lactation consultant.
Karleen Gribble, Adjunct Associate Professor, School of Nursing and Midwifery, Western Sydney University; Naomi Hull, PhD candidate, food security for infants and young children, University of Sydney, and Nina Jane Chad, Research Fellow, University of Sydney School of Public Health, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Vagus Nerve’s Power for Weight Loss
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Dr. Arun Dhir is a university lecturer, a gastrointestinal surgeon, an author, and a yoga and meditation instructor, and he has this to say:
Gut feelings
The vagus nerve is the 10th cranial nerve, also known as “vagus” (“the wanderer”), because it travels from the brain to many other body parts, including the ears, throat, heart, respiratory system, gut, pancreas, liver, and reproductive system. It’s no surprise then, that it plays a key role in brain-gut communication and metabolism regulation.
The vagus nerve is part of the parasympathetic nervous system, responsible for rest, digestion, and counteracting the stress response. Most signals through the vagus nerve travel from the gut to the brain, though there is communication in both directions.
You may be beginning to see how this works and its implications for weight management: the vagus nerve senses metabolites from the liver, pancreas, and small intestine, and regulates insulin production by stimulating beta cells in the pancreas, which is important for avoiding/managing insulin resistance and metabolic syndrome in general.
Dr. Dhir cites a study in which vagus nerve stimulation (originally used for treating epilepsy and depression) was shown to cause unintentional weight loss (6-11%) in patients, revealing a link to weight management. Of course, that is quite a specific sample, so more research is needed to say for sure, but because the principle is very sound and the mechanism of action is clear, it’s not being viewed as a controversial conclusion.
As for how get these benefits, here are seven ways:
- Cold water on the face: submerge your face in cold water in the morning while holding water in your mouth, or cover your face with a cold wet washcloth (while holding your breath please; no need to waterboard yourself!), which activates the “mammalian dive response” in which your body activates the parasympathetic nervous system in order to remain calm and thus survive for longer underwater
- Alternate hot and cold showers: switch between hot and cold water during showers for 10-second intervals; this creates eustress and activates the process of hormesis, improving your overall stress management and reducing any chronic stress response you may otherwise have going on
- Humming and gargling: the vibrations in the throat stimulate the nearby vagus nerve
- Deep breathing (pranayama): yoga breathing exercises, especially combined with somatic exercises such as the sun salutation, can stimulate the vagus nerve
- Intermittent fasting: helps recalibrate the metabolism and indirectly improves vagus nerve function
- Massage and acupressure: stimulates lymphatic channels and the vagus nerve
- Long walks in nature (“forest bathing”): helps trigger relaxation in general
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
The Vagus Nerve (And How You Can Make Use Of It)
Take care!
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Body Language (In The Real World)
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Forget What You Think You Know About Body Language
…unless it’s about a specific person whose habits and mannerisms you know intimately, in which case, you probably have enough personal data stored up to actually recognize patterns à la “when my spouse does this, then…”, and probably do know what’s going on.
For everyone else… our body language can be as unique as our idiolect
What’s an idiolect? It’s any one given person’s way of speaking/writing, in their natural state (i.e. without having to adjust their style for some reason, for example in a public-facing role at work, where style often becomes much narrower and more consciously-chosen).
Extreme example first
To give an extreme example of how non-verbal communication can be very different than a person thinks, there’s an anecdote floating around the web of someone whose non-verbal autistic kid would, when he liked someone who was visiting the house, hide their shoes when they were about to leave, to cause them to stay longer. Then one day some relative visited and when she suggested that she “should be going sometime soon”, he hurried to bring her her shoes. She left, happy that the kid liked her (he did not).
The above misunderstanding happened because the visitor had the previous life experience of “a person who brings me things is being helpful, and if they do it of their own free will, it’s because they like me”.
In other words…
Generalizations are often sound… In general
…which does not help us when dealing with individuals, which as it turns out, everyone is.
Clenched fists = tense and angry… Except when it’s just what’s comfortable for someone, or they have circulation issues, or this, or that, or the other.
Pacing = agitated… Except when it’s just someone who finds the body in motion more comfortable
Relaxed arms and hands = at ease and unthreatening… Unless it’s a practitioner of various martial arts for whom that is their default ready-for-action state.
Folded arms = closed-off, cold, distant… Or it was just somewhere to put one’s hands.
Lack of eye contact = deceitful, hiding something… Unless it’s actually for any one of a wide number of reasons, which brings us to our next section:
A liar’s “tells”
Again, if you know someone intimately and know what signs are associated with deceit in them, then great, that’s a thing you know. But for people in general…
A lot of what is repeated about “how to know if someone is lying” has seeped into public consciousness from “what police use to justify their belief that someone is lying”.
This is why many of the traditional “this person is lying” signs are based around behaviors that show up when in fact “this person is afraid, under pressure, and talking to an authority figure who has the power to ruin their life”:
Research on Non-verbal Signs of Lies and Deceit: A Blind Alley
But what about eye-accessing cues? They have science to them, right?
For any unfamiliar: this is about the theory that when we are accessing different parts of our mind (such as memory or creativity, thus truthfulness or lying), our eyes move one way or another according to what faculty we’re accessing.
Does it work? No
But, if you carefully calibrate it for a specific person, such as by asking them questions along the lines of “describe your front door” or “describe your ideal holiday”, to see which ways they look for recall or creativity… Then also no:
The Eyes Don’t Have It: Lie Detection and Neuro-Linguistic Programming
How can we know what non-verbal communication means, then?
With strangers? We can’t, simply. It’s on us to be open-minded, with a healthy balance of optimism and wariness.
With people we know? We can build up a picture over time, learn the person’s patterns. Best of all, we can ask them. In the moment, and in general.
For more on optimizing interpersonal communication, check out:
Save Time With Better Communication
…and the flipside of that:
The Problem With Active Listening (And How To Do It Better)
Take care!
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What Matters Most For Your Heart?
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Eat More (Of This) For Lower Blood Pressure
Heart disease remains the world’s #1 killer. We’d say “and in the US, it’s no different”, but in fact, the US is #1 country for heart disease. So, it’s worse and perhaps some extra care is in order.
But how?
What matters the most
Is it salt? Salt plays a part, but it’s not even close to the top problem:
Hypertension: Factors Far More Relevant Than Salt
Is it saturated fat? Saturated fat from certain sources plays more of a role than salt, but other sources may not be so much of an issue:
Can Saturated Fats Be Heart-Healthy?
Is it red meat? Red meat is not great for the heart (or for almost anything else, except perhaps anemia):
The Whys and Hows of Cutting Meats Out Of Your Diet
…but it’s still not the top dietary factor.
The thing many don’t eat
All the above are foodstuffs that a person wanting a healthier heart and cardiovascular system in general might (reasonably and usually correctly) want to cut down, but there’s one thing that most people need more of:
Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
And this is especially true for heart health:
❝Dietary fiber has emerged as a crucial yet underappreciated part of hypertension management.
Our comprehensive analysis emphasizes the evidence supporting the effectiveness of dietary fiber in lowering blood pressure and reducing the risk of cardiovascular events.❞
Specifically, she and her team found:
- Each additional 5g of fiber per day reduces blood pressure by 2.8/2.1 (systolic/diastolic, in mmHG)
- Dietary fiber works in several ways to improve cardiovascular health, including via gut bacteria, improved lipids profiles, and anti-inflammatory effects
- Most people are still only getting a small fraction (¼ to ⅓) of the recommended daily amount of fiber. To realize how bad that is, imagine if you consumed only ¼ of the recommended daily amount of calories every day!
You can read more about it here:
Dietary fiber critical in managing hypertension, international study finds
That’s a pop-science article, but it’s still very informative. If you prefer to read the scientific paper itself (or perhaps as well), you can find it below
Recommendations for the Use of Dietary Fiber to Improve Blood Pressure Control
Want more from your fiber?
Here’s yet another way fiber improves cardiometabolic health, hot off the academic press (the study was published just a couple of weeks ago):
How might fiber lower diabetes risk? Your gut could hold the clues
this pop-science article was based on this scientific paper
Gut Microbiota and Blood Metabolites Related to Fiber Intake and Type 2 Diabetes
Take care!
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Pine Nuts vs Peanuts – Which is Healthier?
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Our Verdict
When comparing pine nuts to peanuts, we picked the pine nuts.
Why?
An argument could be made for either, honestly, as it depends on what we prioritize the most. These are both very high-calorie foods, and/but are far from empty calories, as they both contain main nutrients. Obviously, if you are allergic to nuts, this one is just not a comparison for you, sorry.
Looking at the macros first, peanuts are higher in protein, carbs, and fiber, while pine nuts are higher in fats—though the fats are healthy, being mostly polyunsaturated, with about a third of the total fats monounsaturated, and a low amount of saturated fat (peanuts have nearly 2x the saturated fat). On balance, we’ll call the macros category a moderate win for peanuts, though.
In terms of vitamins, peanuts have more of vitamins B1, B3, B5, B6, and B9, while pine nuts have more of vitamins A, B2, C, E, K, and choline. All in all, a marginal win for pine nuts.
In the category of minerals, peanuts have more calcium and selenium, while pine nuts have more copper, iron, magnesium, manganese, phosphorus, and zinc. An easy win for pine nuts, even before we take into account that peanuts have nearly 10x as much sodium. And yes, we are talking about the raw nuts, not nuts that have been roasted and salted.
Adding up the categories gives a win for pine nuts—but if you have certain particular priorities, you might still prefer peanuts for the areas in which peanuts are stronger.
Of course, the best solution is to enjoy both!
Want to learn more?
You might like to read:
Why You Should Diversify Your Nuts!
Take care!
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Healthy Butternut Macaroni Cheese
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A comfort food classic, healthy and plant-based, without skimping on the comfort.
You will need
- ½ butternut squash, peeled and cut into small pieces (if buying ready-chopped, this should be about 1 lb)
- 1 onion, chopped
- ¼ bulb garlic
- 2 tbsp extra virgin olive oil
- 12 oz (or thereabouts) wholegrain macaroni, or similar pasta shape (even penne works fine—which is good, as it’s often easier to buy wholegrain penne than wholegrain macaroni) (substitute with a gluten-free pasta such as buckwheat pasta, if avoiding gluten)
- 6 oz (or thereabouts) cashews, soaked in hot water for at least 15 minutes (but longer is better)
- ½ cup milk (your preference what kind; we recommend hazelnut for its mellow nutty flavor)
- 3 tbsp nutritional yeast
- Juice of ½ lemon
- 2 tsp black pepper, coarse ground
- ½ tsp MSG, or 1 tsp low-sodium salt
- Optional: smoked paprika, to serve
Note: if you are allergic to nuts, please accept our apologies that there’s no substitution available in this one. Simply put, removing the cashews would mean changing most of the rest of the recipe to compensate, so there’s no easy “or substitute with…” that we can mention. We’ll have to find/develop a good healthy plant-based no-nuts recipe for you at a later date.
Method
(we suggest you read everything at least once before doing anything)
1) Preheat the oven to 400℉ / 200℃.
2) Combine the butternut squash, onion, and garlic with the olive oil, in a large roasting tin, tossing thoroughly to ensure an even coat of oil. Roast them for about 25 minutes until soft.
3) Cook the macaroni while you wait (this should take about 10 minutes or so in salted water), drain, and rinse thoroughly in cold water, before setting aside. This cooling increases the pasta’s resistant starch content (that’s good, for your gut and for your blood sugars, and thus also for your heart and brain), and it will maintain this benefit even when we reheat it later.
4) Drain the cashews, and tip them into a high-speed blender with the milk, and process until smooth. Add the roasted vegetables and the remaining ingredients apart from the pasta, and continue to process until again smooth. You can add a little more milk if you need to, but go easy with it.
5) Heat the sauce (that you just made in the food processor) gently in a saucepan, and refresh the pasta by pouring a kettle of boiling water through it in a colander.
6) Optional: combine the pasta and sauce in an ovenproof dish or cast iron pan, and give it a few minutes under the hottest grill (or browning iron, if you have such) your oven can muster. Alternatively, use a culinary blowtorch, if you have one.
7) Serve; and if you didn’t do the optional step above, this means combining the pasta and sauce. You can also dust the top with some extra seasonings if you like. Smoked paprika works well for this.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Butternut Squash vs Pumpkin – Which is Healthier?
- Cashew Nuts vs Coconut – Which is Healthier?
- The Many Health Benefits Of Garlic
- Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
- Sea Salt vs MSG – Which is Healthier?
Take care!
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Neurotransmitter Cheatsheet
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Which Neurotransmitter?
There are a lot of neurotransmitters that are important for good mental health (and, by way of knock-on effects, physical health).
However, when pop-science headlines refer to them as “feel-good chemicals” (yes but which one?!) or “the love molecule” (yes but which one?!) or other such vague names when referring to a specific neurotransmitter, it’s easy to get them mixed up.
So today we’re going to do a little disambiguation of some of the main mood-related neurotransmitters (there are many more, but we only have so much room), and what things we can do to help manage them.
Dopamine
This one predominantly regulates reward responses, though it’s also necessary for critical path analysis (e.g. planning), language faculties, and motor functions. It makes us feel happy, motivated, and awake.
To have more:
- eat foods that are rich in dopamine or its precursors such as tyrosine (bananas and almonds are great)
- do things that you find rewarding
Downsides: is instrumental in most addictions, and also too much can result in psychosis. For most people, that level of “too much” isn’t obtainable due to the homeostatic system, however.
See also: Rebalancing Dopamine (Without “Dopamine Fasting”)
Serotonin
This one predominantly helps regulate our circadian rhythm. It also makes us feel happy, calm, and awake.
To have more:
- get more sunlight, or if the light must be artificial, then (ideally) full-spectrum light, or (if it’s what’s available) blue light
- spend time in nature; we are hardwired to feel happy in the environments in which we evolved, which for most of human history was large open grassy expanses with occasional trees (however, for modern purposes, a park or appropriate garden will suffice).
Downsides: this is what keeps us awake at night if we had too much light before bed, and also too much serotonin can result in (potentially fatal) serotonin syndrome. Most people can’t get that much serotonin due to our homeostatic system, but some drugs can force it upon us.
See also: Seasonal Affective Disorder Strategies
Oxytocin
This one predominantly helps us connect to others on an emotional level. It also makes us feel happy, calm, and relaxed.
To have more:
- hug a loved one (or even just think about doing so, if they’re not available)
- look at pictures/videos of cute puppies, kittens, and the like—this triggers a similar response
Downsides: negligible. Socially speaking, it can cause us to drop our guard, most for most people most of the time, this is not a problem. It can also reduce sexual desire—it’s in large part responsible for the peaceful lulled state post-orgasm. It’s not responsible for the sleepiness in men though; that’s mostly prolactin.
See also: Only One Kind Of Relationship Promotes Longevity This Much!
Adrenaline
This one predominantly affects our sympathetic nervous system; it elevates heart rate, blood pressure, and other similar functions. It makes us feel alert, ready for action, and energized.
To have more:
- listen to a “power anthem” piece of music. What it is can depend on your musical tastes; whatever gets you riled up in an empowering way.
- engage in something competitive that you feel strongly about while doing it—or by the same mechanism, a solitary activity where the stakes feel high even if it’s actually quite safe (e.g. watching a thriller or a horror movie, if that’s your thing).
Downsides: its effects are not sustainable, and (in cases of chronic stress) the body will try to sustain them anyway, which has a deleterious effect. Because adrenaline and cortisol are closely linked, chronically high adrenal action will tend to mean chronically high cortisol also.
See also: Lower Your Cortisol! (Here’s Why & How)
Some final words
You’ll notice that in none of the “how to have more” did we mention drugs. That’s because:
- a drug-free approach is generally the best thing to try first, at the very least
- there are simply a lot of drugs to affect each one (or more), and talking about them would require talking about each drug in some detail.
However, the following may be of interest for some readers:
Antidepressants: Personalization Is Key!
Take care!
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