Is Dairy Scary?
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Is Dairy Scary?
Milk and milk products are popularly enjoyed as a good source of calcium and vitamin D.
In contrast, critics of dairy products (for medical reasons, rather than ethical, which is another matter entirely and beyond the scope of this article) point to risks of cancer, heart disease, and—counterintuitively—osteoporosis. We’ll focus more on the former, but touch on the latter two before closing.
Dairy & Cancer
Evidence is highly conflicting. There are so many studies with so many different results. This is partially explicable by noting that not only is cancer a many-headed beast that comes in more than a hundred different forms and all or any of them may be affected one way or another by a given dietary element, but also… Not all milk is created equal, either!
Joanna Lampe, of the Public Health Sciences division, Fred Hutchinson Cancer Research Center in Seattle, writes:
❝Dairy products are a complex group of foods and composition varies by region, which makes evaluation of their association with disease risk difficult. For most cancers, associations between cancer risk and intake of milk and dairy products have been examined only in a small number of cohort studies, and data are inconsistent or lacking❞
In her systematic review of studies, she noted, for example, that:
- Milk and dairy products contain micronutrients and several bioactive constituents that may influence cancer risk and progression
- There’s probable association between milk intake and lower risk of colorectal cancer
- There’s a probable association between diets high in calcium and increased risk of prostate cancer
- Some studies show an inverse association between intake of cultured dairy products and bladder cancer (i.e., if you eat yogurt you’re less likely to get bladder cancer)
Since that systemic review was undertaken, more research has been conducted, and the results are… Not conclusive, but converging towards a conclusion:
- Dairy products can increase or decrease cancer risk
- The increase in cancer risk seems strongest when milk is consumed in quantities that result in too much calcium. When it comes to calcium, you can absolutely have too much of a good thing—just ask your arteries!
- The decrease in cancer seems to be mostly, if not exclusively, from fermented dairy products. This usually means yogurts. The benefit here is not from the milk itself, but rather from the gut-friendly bacteria.
You may be wondering: “Hardened arteries, gut microbiome health? I thought we were talking about cancer?” and yes we are. No part of your health is an island unrelated to other parts of your health. One thing can lead to another. Sometimes we know how and why, sometimes we don’t, but it’s best to not ignore the data.
The bottom line on dairy products and cancer is:
- Consuming dairy products in general is probably fine
- Yogurt, specifically, is probably beneficial
Dairy and Heart Disease
The reason for the concern is clear enough: it’s largely assumed to be a matter of saturated fat intake.
The best combination of “large” and “recent” that we found was a three-cohort longitudinal study in 2019, which pretty much confirms what was found in smaller or less recent studies:
- There is some evidence to suggest that consumption of dairy can increase all-cause mortality in general, and death from (cancer and) cardiovascular disease in particular
- The evidence is not, however, overwhelming. It is marginal.
Dairy and Osteoporosis
Does dairy cause osteoporosis? Research here tends to fall into one of two categories when it comes to conclusions, so we’ll give an example of each:
- “Results are conflicting, saying yes/no/maybe, and basically we just don’t know”
- “Results are conflicting, but look: cross-sectional and case-control studies say yes; cohort studies say maybe or no; we prefer the cohort studies”
See them for yourself:
- Osteoporosis: Is milk a kindness or a curse?
- Consumption of milk and dairy products and risk of osteoporosis and hip fracture
Conclusion: really, the jury is very much still out on this one
Summary:
- Moderate consumption of dairy products is almost certainly fine
- More specifically: it probably has some (small) pros and some (small) cons
- Yogurt is almost certainly healthier than other dairy products, and is almost universally considered a healthy food (assuming not being full of added sugar etc, of course)
- If you’re going to have non-dairy alternatives to milk, choose wisely!
That’s all we have time for today, but perhaps in a future edition we’ll do a run-down of the pros and cons of various dairy alternatives!
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Ramadan is almost here. 5 tips to boost your wellbeing and energy levels if you’re fasting
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Ramadan is one of the most significant months of the Islamic lunar calendar. It marks the time when the Quran was revealed to Prophet Mohammed (peace be upon him).
Almost 2 billion Muslims worldwide observe this month of prayer and reflection, which includes fasting between two prayers, Fajr at dawn and Maghrib at sunset.
Ramadan is about purifying the mind, body and soul, and practising self-restraint. It’s a time for spiritual growth and dedication to God (or Allah in Arabic). Ramadan also brings people together for meals and celebrations, with a focus on helping those less fortunate.
Depending on where you live, Ramadan can mean going 12 to 19 hours without eating or drinking anything, including water.
Our research shows choosing balanced, nutrient-dense foods and drinks can result in better wellbeing and greater energy levels than following your usual diet during Ramadan.
Here’s what to consider if you’re fasting for Ramadan.
Drazen Zigic/Shutterstock Do you have any health issues?
Healthy Muslims are expected to fast during Ramadan once they have reached puberty.
Frail older adults are exempt from fasting, as are pregnant, breastfeeding and menstruating women. Anyone who cannot participate in fasting can make up for the missed fasting days later.
People with chronic illness or mental health may be exempt if fasting poses a risk to their health. If you suffer from chronic illness, such as diabetes, heart disease or kidney problems, and want to fast, consult your GP first.
Fasting can have severe health consequences for people with certain medical conditions and those who rely on prescription medication. Some medications need to be taken at a specific time (and some with food) to be safe and effective.
If you’re not drinking enough water during Ramadan, your body might also handle some medications differently: they may not work as well or cause side effects.
For people who can safely fast, here are five tips to maintain your wellbeing during Ramadan.
1. Plan ahead
In preparation for Ramadan, stock up on essentials. Plan your meals and hydration in advance, to stay on top of your nutritional intake.
Start reducing your caffeine gradually in the week leading to Ramadan, so your body can adjust. This can help prevent or reduce the fasting headaches that many experience at the beginning of Ramadan.
Move your meals gradually towards Suhoor and Iftar times, so your body gets used to the new mealtimes.
Plan your meals ahead of time. Ground Picture/Shutterstock 2. Stay hydrated
Staying hydrated is important during Ramadan. Women should aim to drink 2.1 litres of water or fluids (such as coconut water, clear soups, broths or herbal teas) each day. Men should aim for 2.6 litres.
Limit the intake of sugary or artificially sweetened drinks and enjoy fresh fruit juice only in moderation. Sugary drinks cause a rapid increase in blood sugar levels. The body responds by releasing insulin, causing a drop in blood sugar, which can leave you feeling fatigued, irritable and hungry.
Increase your hydration by including water-rich foods, such as cucumbers and watermelon, in your diet.
3. Get your nutrients early
Before dawn, have a nutrient-rich, slow-digesting meal, along with plenty of water.
Select healthy nutrient-dense food with proteins and fats from lean meats, fish, chickpeas, tofu, nuts and seeds.
Choose whole grain products, a variety of vegetables and fruits, and fermented foods, such as kimchi and pickles, which can support your digestion.
When you prepare your meals, consider grilling, steaming or air frying instead of deep frying.
Stay away from processed foods such as cakes, ice cream, chips and chocolates, as they often lack essential nutrients and are high in sugar, salt and fat. Processed foods also tend to be low in fibre and protein, which are crucial for maintaining a feeling of fullness.
4. Avoid the temptation to overeat in the evening
At sunset, many Muslims come together with family and friends for the fast-breaking evening meal (Iftar). During these occasions, it may be tempting to overindulge in sweets, salty snacks and fatty dishes.
But overeating can strain the digestive system, cause discomfort and disrupt sleep.
Start with something small. Tekkol/Shutterstock Instead, listen to your body’s signals, control your portions, and eat mindfully – this means slowly and without distractions.
Start with something small, such as a date and a glass of water. You may choose to complete the Maghrib prayer before returning for your main meal and more fluids.
5. Keep moving
Finally, try to include some light exercise into your schedule, to maintain your fitness and muscle mass, and promote sleep.
But avoid heavy workouts, sauna and intensive sports while fasting, as these may increase dehydration, which can increase your risk of feeling faint and falling.
Romy Lauche, Deputy Director (Research), National Centre for Naturopathic Medicine, Southern Cross University; Fatima El-Assaad, Senior Research Fellow, Microbiome Research Centre, UNSW Sydney, and Jessica Bayes, Postdoctoral Research Fellow at the National Centre for Naturopathic Medicine, Southern Cross University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Fascinating Truth About Aspartame, Cancer, & Neurotoxicity
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Is Aspartame’s Reputation Well-Deserved?
In Tuesday’s newsletter, we asked you for your health-related opinions on aspartame, and got the above-depicted, below-described, set of responses:
- About 47% said “It is an evil carcinogenic neurotoxin”
- 20% said “It is safe-ish, but has health risks that are worse than sugar”
- About 19% said “It is not healthy, but better than sugar”
- About 15% said “It’s a perfectly healthy replacement for sugar”
But what does the science say?
Aspartame is carcinogenic: True or False?
False, assuming consuming it in moderation. In excess, almost anything can cause cancer (oxygen is a fine example). But for all meaningful purposes, aspartame does not appear to be carcinogenic. For example,
❝The results of these studies showed no evidence that these sweeteners cause cancer or other harms in people.❞
~ NIH | National Cancer Institute
Source: Artificial Sweeteners and Cancer
Plenty of studies and reviews have also confirmed this; here are some examples:
- Evaluation of aspartame cancer epidemiology studies based on quality appraisal criteria
- Aspartame, low-calorie sweeteners and disease: Regulatory safety and epidemiological issues
- Aspartame: A review of genotoxicity data
Why then do so many people believe it causes cancer, despite all the evidence against it?
Well, there was a small study involving giving megadoses to rats, which did increase their cancer risk. So of course, the popular press took that and ran with it.
But those results have not been achieved outside of rats, and human studies great and small have all been overwhelmingly conclusive that moderate consumption of aspartame has no effect on cancer risk.
Aspartame is a neurotoxin: True or False?
False, again assuming moderate consumption. If you’re a rat being injected with a megadose, your experience may vary. But a human enjoying a diet soda, the aspartame isn’t the part that’s doing you harm, so far as we know.
For example, the European Food Safety Agency’s scientific review panel concluded:
❝there is still no substantive evidence that aspartame can induce such effects❞
~ Dr. Atkin et al (it was a pan-European team of 21 experts in the field)
Source: Report on the Meeting on Aspartame with National Experts
See also,
❝The data from the extensive investigations into the possibility of neurotoxic effects of aspartame, in general, do not support the hypothesis that aspartame in the human diet will affect nervous system function, learning or behavior.
The weight of existing evidence is that aspartame is safe at current levels of consumption as a nonnutritive sweetener.❞
and
❝The safety testing of aspartame has gone well beyond that required to evaluate the safety of a food additive.
When all the research on aspartame, including evaluations in both the premarketing and postmarketing periods, is examined as a whole, it is clear that aspartame is safe, and there are no unresolved questions regarding its safety under conditions of intended use.❞
Source: Regulatory Toxicology & Pharmacology | Aspartame: Review of Safety
Why then do many people believe it is a neurotoxin? This one can be traced back to a chain letter hoax from about 26 years ago; you can read it here, but please be aware it is an entirely debunked hoax:
Urban Legends | Aspartame Hoax
Take care!
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Dietary Changes for Artery Health
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
❝How does your diet change clean out your arteries of the bad cholesterol?❞
There’s good news and bad news here, and they can both be delivered with a one-word reply:
Slowly.
Or rather: what’s being cleaned out is mostly not the LDL (bad) cholesterol, but rather, the result of that.
When our diet is bad for cardiovascular health, our arteries get fatty deposits on their walls. Cholesterol gets stuck here too, but that’s not the main physical problem.
Our body’s natural defenses come into action and try to clean it up, but they (for example macrophages, a kind of white blood cell that consumes invaders and then dies, before being recycled by the next part of the system) often get stuck and become part of the buildup (called atheroma), which can lead to atherosclerosis and (if calcium levels are high) hardening of the arteries, which is the worst end of this.
This can then require medical attention, precisely because the body can’t remove it very well—especially if you are still maintaining a heart-unhealthy diet, thus continuing to add to the mess.
However, if it is not too bad yet, yes, a dietary change alone will reverse this process. Without new material being added to the arterial walls, the body’s continual process of rejuvenation will eventually fix it, given time (free from things making it worse) and resources.
In fact, your arteries can be one of the quickest places for your body to make something better or worse, because the blood is the means by which the body moves most things (good or bad) around the body.
All the more reason to take extra care of it, since everything else depends on it!
You might also like our previous main feature:
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Red Bell Peppers vs Tomatoes – Which is Healthier?
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Our Verdict
When comparing red bell peppers to tomatoes, we picked the peppers.
Why?
In terms of macronutrients, these two fruits-that-get-used-as-vegetables are similar in most respects; they’re mostly water, negligible protein and fat, similar amounts of carbs, even a similar carb breakdown (mostly fructose and glucose). One thing that does set them apart is that peppers* have about 2x the fiber, which difference results in peppers having the lower Glycemic Index—though tomatoes are quite low in GI too.
*for brevity we’re just going to write “peppers”, but we are still talking about sweet red bell peppers throughout. This is important, as different color peppers have different nutrient profiles.
In the category of vitamins, peppers have much more of vitamins A, B1, B2, B3, B5, B6, B9, C, and E. In contrast, tomatoes have more vitamin K. An easy win for peppers.
When it comes to minerals, the margins are narrower, but peppers have more iron, zinc, and selenium, while tomatoes have more calcium and copper. They’re approximately equal on other minerals they both contain, making this category a slight (3:2) win for peppers.
As for phytochemical benefits, both are good sources of lycopene (both better when cooked) and other carotenes (for example lutein), and both have an array of assorted flavonoids.
All in all, a win for peppers, but both are great!
Want to learn more?
You might like to read:
- Brain Food? The Eyes Have It!
- Bell Peppers: A Spectrum Of Specialties
- Lycopene’s Benefits For The Gut, Heart, Brain, & More
Take care!
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Tartar Removal At Home & How To Prevent Tartar
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Three things to bear in mind:
- Tartar is hardened plaque.
- Plaque is an infected biofilm that expands the natural thin film on teeth.
- Healthy biofilm resists plaque and tartar formation.
Therefore, the recommended approach is a multistep program:
The Complete Mouth Care System
Dr. Phillips recommends to use these five products in this order twice daily:
- Zellie’s Mints & Gum: having 6–10 grams of xylitol daily will help to loosen plaque on teeth so that the following program is more effective. Xylitol protects from mouth acidity and help to remineralize teeth.
- CloSYS Prerinse: CloSYS will prepare your teeth for brushing. This pH neutral rinse ensures that brushing teeth does not occur in an acidic mouth and therefore easily damage teeth.
- Crest Cavity Protection Regular Paste: has an active ingredient of sodium fluoride at optimal concentration (not stannous fluoride). This paste has the proper abrasion and no glycerine.
- Listerine: is an effective rinse that targets the bacteria that cause plaque build up and gingivitis with three active ingredients: eucalyptus essential oil, menthol essential oil, and thymol essential oil. As such, unlike many mouthwashes, listerine does not harm the mouth’s diversity of good bacteria or the mouth’s production of nitric oxide.
- ACT Anticavity Rinse: ACT is a very dilute but extremely effective sodium fluoride solution. It helps prevent and reverse cavities, strengthen teeth, reduce sensitivity, and leaves your breath fresh.
She advises us that by doing this twice-daily over 6 months, we can expect significant tartar reduction, and indeed, that dental appointments may reveal minimal or no need for tartar removal.
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 our own three-part series:
- Toothpastes & Mouthwashes: Which Help And Which Harm?
- Flossing Without Flossing?
- Less Common Oral Hygiene Options ← we recommend the miswak! Not only does it clean the teeth as well as or better than traditional brushing, but also it changes the composition of saliva to improve the oral microbiome, effectively turning your saliva into a biological mouthwash that kills unwanted microbes and is comfortable for the ones that should be there.
Take care!
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Tastes from our past can spark memories, trigger pain or boost wellbeing. Here’s how to embrace food nostalgia
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Have you ever tried to bring back fond memories by eating or drinking something unique to that time and place?
It could be a Pina Colada that recalls an island holiday? Or a steaming bowl of pho just like the one you had in Vietnam? Perhaps eating a favourite dish reminds you of a lost loved one – like the sticky date pudding Nanna used to make?
If you have, you have tapped into food-evoked nostalgia.
As researchers, we are exploring how eating and drinking certain things from your past may be important for your mood and mental health.
Halfpoint/Shutterstock Bittersweet longing
First named in 1688 by Swiss medical student, Johannes Hoffer, nostalgia is that bittersweet, sentimental longing for the past. It is experienced universally across different cultures and lifespans from childhood into older age.
But nostalgia does not just involve positive or happy memories – we can also experience nostalgia for sad and unhappy moments in our lives.
In the short and long term, nostalgia can positively impact our health by improving mood and wellbeing, fostering social connection and increasing quality of life. It can also trigger feelings of loneliness or meaninglessness.
We can use nostalgia to turn around a negative mood or enhance our sense of self, meaning and positivity.
Research suggests nostalgia alters activity in the brain regions associated with reward processing – the same areas involved when we seek and receive things we like. This could explain the positive feelings it can bring.
Nostalgia can also increase feelings of loneliness and sadness, particularly if the memories highlight dissatisfaction, grieving, loss, or wistful feelings for the past. This is likely due to activation of brain areas such as the amygdala, responsible for processing emotions and the prefrontal cortex that helps us integrate feelings and memories and regulate emotion.
How to get back there
There are several ways we can trigger or tap into nostalgia.
Conversations with family and friends who have shared experiences, unique objects like photos, and smells can transport us back to old times or places. So can a favourite song or old TV show, reunions with former classmates, even social media posts and anniversaries.
What we eat and drink can trigger food-evoked nostalgia. For instance, when we think of something as “comfort food”, there are likely elements of nostalgia at play.
Foods you found comforting as a child can evoke memories of being cared for and nurtured by loved ones. The form of these foods and the stories we tell about them may have been handed down through generations.
Food-evoked nostalgia can be very powerful because it engages multiple senses: taste, smell, texture, sight and sound. The sense of smell is closely linked to the limbic system in the brain responsible for emotion and memory making food-related memories particularly vivid and emotionally charged.
But, food-evoked nostalgia can also give rise to negative memories, such as of being forced to eat a certain vegetable you disliked as a child, or a food eaten during a sad moment like a loved ones funeral. Understanding why these foods evoke negative memories could help us process and overcome some of our adult food aversions. Encountering these foods in a positive light may help us reframe the memory associated with them.
Just like mum used to make. Food might remind you of the special care you received as a child. Galina Kovalenko/Shutterstock What people told us about food and nostalgia
Recently we interviewed eight Australians and asked them about their experiences with food-evoked nostalgia and the influence on their mood. We wanted to find out whether they experienced food-evoked nostalgia and if so, what foods triggered pleasant and unpleasant memories and feelings for them.
They reported they could use foods that were linked to times in their past to manipulate and influence their mood. Common foods they described as particularly nostalgia triggering were homemade meals, foods from school camp, cultural and ethnic foods, childhood favourites, comfort foods, special treats and snacks they were allowed as children, and holiday or celebration foods. One participant commented:
I guess part of this nostalgia is maybe […] The healing qualities that food has in mental wellbeing. I think food heals for us.
Another explained
I feel really happy, and I guess fortunate to have these kinds of foods that I can turn to, and they have these memories, and I love the feeling of nostalgia and reminiscing and things that remind me of good times.
Yorkshire pudding? Don’t mind if I do. Rigsbyphoto/Shutterstock Understanding food-evoked nostalgia is valuable because it provides us with an insight into how our sensory experiences and emotions intertwine with our memories and identity. While we know a lot about how food triggers nostalgic memories, there is still much to learn about the specific brain areas involved and the differences in food-evoked nostalgia in different cultures.
In the future we may be able to use the science behind food-evoked nostalgia to help people experiencing dementia to tap into lost memories or in psychological therapy to help people reframe negative experiences.
So, if you are ever feeling a little down and want to improve your mood, consider turning to one of your favourite comfort foods that remind you of home, your loved ones or a holiday long ago. Transporting yourself back to those times could help turn things around.
Megan Lee, Senior Teaching Fellow, Psychology, Bond University; Doug Angus, Assistant Professor of Psychology, Bond University, and Kate Simpson, Sessional academic, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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