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Category: nutrition

Published on Leave a comment on Kidney Stones and the Gut Microbiome
Kidney stones Credit: Wikipedia

What causes a person to develop kidney stones has long been debated. A recent study found that in persons who develop kidney stones, there are alterations in the gut, salivary, and urinary microbiomes. In other words, the community of fungi, viruses, and bacteria at each of these sites are out of whack or imbalanced.

In the study, not only were the 3 microbiomes imbalanced in the persons with kidney stones (when compared to healthy people without kidney stones), but they also had less diversity (fewer species) in their microbiomes. For example, persons with kidney stones had significantly fewer gut health associated bacteria F. prausnitzii, and significantly more inflammation associated E. lenta.

Those with kidney stones also had a history of having taken more antibiotics (antimicrobials).

The researchers conclusion: To avoid kidney stones a healthy diet is essential (for a healthy gut microbiome). One should also avoid taking antibiotics unless necessary. [BTW, the bacteria F. prausnitzii has long been viewed as a keystone microbe in a healthy gut microbiome. It can be increased by increasing fiber in the diet - e.g., fruits, vegetables, seeds, nuts, whole grains, legumes.]

From Medical Xpress: New study sheds light on the connection between the microbiome and kidney stones

A new study from Lawson Health Research Institute and Western University published in the journal Microbiome has found changes in the microbiome in multiple locations in the body are linked to the formation of kidney stones. ...continue reading "Kidney Stones and the Gut Microbiome"

Published on Leave a comment on Study Finds Adults Eat A Meal’s Worth of Snacks Each Day

This is so true.... Researchers found that American adults eat about one meal's worth of snacks over the course of each day. That's about 400 to 500 calories, or almost one quarter of daily calories. Also, the snacks are typically poor nutritionally -  with lots of sugar and low in fiber.

Bottom line: If you snack, then try to have nutritionally good snacks, such as fruit or nuts (and not just chips, cookies, and candy). This way the snacks will be a source of nutrients and fiber (all good!).

From Science Daily: US adults eat a meal's worth of calories of snacks in a day

Snacks constitute almost a quarter of a day's calories in U.S. adults and account for about one-third of daily added sugar, a new study suggests. ...continue reading "Study Finds Adults Eat A Meal’s Worth of Snacks Each Day"

Published on Leave a comment on Study Found Vitamin D Supplements Do Not Prevent Fractures In Children

Another disappointing result for Vitamin D supplements. A large study, with school-aged children randomly assigned to either a vitamin D supplement group or no supplement, found that vitamin D supplementation had no effect on the number of fractures that occurred in the children. Vitamin D3 supplementation did not prevent fractures or have an effect on bone strength.

Most children were vitamin D deficient at the beginning of the 3 year study (but none had rickets, for which vitamin D is prescribed). The vitamin D supplement (14,000 IU/week for 3 years) group soon had normal levels while the other group stayed at low levels. And yet there were no differences in the percentage getting fractures (6% in both groups) over time.

From Science Daily: Vitamin D supplements do not prevent bone fractures in children

A major clinical trial led by Queen Mary University of London and the Harvard T.H. Chan School of Public Health has found that vitamin D supplements do not increase bone strength or prevent bone fractures in children with vitamin D deficiency. The findings challenge widely held perceptions relating to the effects of vitamin D on bone health. ...continue reading "Study Found Vitamin D Supplements Do Not Prevent Fractures In Children"

Published on Leave a comment on Many Women Have Low Levels of Important Nutrients Before Pregnancy

There appears to be a big downside to an all plant diet, which is the possibility of missing essential nutrients that are found in dairy and meat (e.g., vitamin B12, vitamin D3, iron, zinc, choline).

This is especially worrisome if a woman is pregnant (developing baby) and also in children (developing body and brain). Nutrient status is important both before conception and during pregnancy for both a healthy pregnancy and baby.

A recent study looking at vitamin status in women both before conception and during pregnancy in 3 high-income countries found that over 90% of the women had marginal or low concentrations of 1 or more important nutrients: folate (folic acid), riboflavin, vitamin B12, or vitamin D before conception, and many developed vitamin B6 deficiency in late pregnancy.

All women took vitamin supplements containing folic acid, beta-carotene, iron, calcium, and iodine during pregnancy. However, one group took supplements that additionally had riboflavin, vitamins B6, B12, and D, zinc. The researchers found that the group with additional vitamins  had higher (better) levels of the nutrients throughout pregnancy.

The study results show that multivitamins should already be taken during the preconception period. Multivitamins should be continued after pregnancy while breastfeeding a baby to maintain adequate levels of essential nutrients.

From Science Daily: Pregnant women are missing vital nutrients needed for them and their babies

Pregnant women are not getting the essential nutrients they and their babies need from modern diets say scientists, who have warned that the situation will likely worsen as more people turn to plant-based foods. ...continue reading "Many Women Have Low Levels of Important Nutrients Before Pregnancy"

Published on Leave a comment on The FDA Is Finally Proposing Banning Brominated Vegetable Oil
US FDA building

Well, well, well... finally the US Food and Drug Administration (FDA) is finally proposing banning a food additive that has long been banned in other countries, including the European Union, Japan, and India. The ingredient is brominated vegetable oil, which was added to many fruit flavored sodas to keep the ingredients from separating.

Brominated vegetable oil has been used as an emulsifying agent since the 1920s. The big name brands of Gatorade, Fresca and Mountain Dew have been slowly phasing it out in the last decade. But smaller brands, such as Sun Drop, still contain the ingredient. California already passed legislation banning the ingredient last month (it'll go into effect in 2027).

Studies find that brominated vegetable oil is toxic to the thyroid, and that it can be harmful to the liver, heart, and cause neurological problems. It builds up in human tissues. By the way, to make  brominated vegetable oil - bromine, an element used in fire retardants, is added to vegetable oil.

In other words, it has been known for years that the additive is harmful, yet the FDA wasn't "convinced" till recently. Yikes!

Excerpts from NPR: The FDA proposes banning a food additive that's been used for a century

The U.S. Food and Drug Administration is considering banning brominated vegetable oil, a food additive that was recently deemed unlawful to use in California because of its potentially harmful effects on human health. ...continue reading "The FDA Is Finally Proposing Banning Brominated Vegetable Oil"

Published on Leave a comment on Kimchi Made With Seafood and Vegan Kimchi Contain the Same Microbes

Over the years I've received many questions about vegan versus kimchi that contains seafood. Are the microbes in the kimchi the same?

One reason this is an important question is because at certain stages of kimchi fermentation the beneficial bacteria Lactobacillus sakei (which treat sinusitis in many people) appears for a time. And during that time when L.sakei is present, dabbing a little kimchi juice in the nostrils helps and treats many individuals with sinusitis. Amazing, yes?

Many people prefer to treat sinusitis with vegan kimchi - which is also my personal preference. I don't want to worry about what is in the seafood used in kimchi. Therefore, it's vegan kimchi for me.

Earlier studies have suggested that even though kimchi is made with cabbage, the L. sakei grows from the surface of raw garlic used in making  the kimchi. From the M.A. Zabat et al (2018) study:

"Because kimchi is made without the use of a starter culture, the raw ingredients play a key role in establishing the bacterial community that is responsible for fermenting kimchi (Jung et al., 2011; Lee et al., 2015)".

"Large amounts of garlic are associated with more kimchi-associated LAB [lactic acid bacteria] in the final product (Lee et al., 2015)." [Note: L. sakei is one of the lactic acid bacteria in kimchi]

This is why the 2018 study, which I just read, is so interesting. The researchers found that both vegan (no seafood)and kimchi made with seafood (e.g., fish sauce) contain the same microbes after fermentation. They may have started out with different populations of microbes, but during fermentation the microbes become similar.

"We found that, despite initial differences in microbial composition between vegan and non-vegan kimchi, there was no notable difference in the final products. Ultimately, the microbial community of both vegan and non-vegan kimchi is dominated by Lactobacillaceae and Leuconostocaceae, and lacks the Enterobacteriaceae found in the fish sauce or miso paste."

Well... that's a relief. What kimchi you choose to eat and use as a sinusitis treatment is personal preference. It's all good. And yes, fermented foods such as kimchi are great for the gut microbiome. They increase gut microbial diversity (good!) and reduce inflammation.

From Physics News: Vegan and traditional kimchi have same microbes, study finds

Good news, vegans: A new study finds that kimchi made without fish products has the same type of bacteria as more traditionally made kimchi. That finding suggests that any "probiotic" benefits associated with traditional kimchi could be present in vegan versions as well. ...continue reading "Kimchi Made With Seafood and Vegan Kimchi Contain the Same Microbes"

Published on Leave a comment on Pediatricians Say to Avoid Giving Toddler Milks to Young Children
Children eating Credit: USDA

Something important for parents to know about: Milks marketed to parents as "toddler milks" are unnecessary, are unregulated, don't offer any benefits over regular milk, and are nutritionally lacking . This statement is from the American Academy of Pediatrics (AAP) report, which was issued Oct. 20, 2023.

The "toddler milks" are found everywhere, frequently next to infant formulas on grocery shelves. They generally come in powdered form and are marketed as being for toddlers and children up to the age of 3. They are nutritionally incomplete and also contain too much salt and sugar.

The AAP says that children 1 years and older should be given a balanced diet of solid foods, breast milk (optional), and  pasteurized cow's milk. That's it. No need for so-called toddler milks.

By the way, infant formulas have to meet federal guidelines, but NOT these so-called "toddler milks". One researcher pointed out that they are just "gateway sugary drinks", and nutritionally inferior to ordinary milk and a balanced diet.

Bottom line: The manufacturers make unproven claims that are not true. They just want your money. $$$ Ignore them!

From Medical Xpress: So-called toddler milks are unregulated and unnecessary, a major pediatrician group says

Powdered drink mixes that are widely promoted as "toddler milks" for older babies and children up to age 3 are unregulated, unnecessary and "nutritionally incomplete," the American Academy of Pediatrics warned Friday. ...continue reading "Pediatricians Say to Avoid Giving Toddler Milks to Young Children"

Published on Leave a comment on Organic Foods From Other Countries May Not Be Organic

Many consumers don't realize it, but some (many?) of the countries that flood the US market with "organic" foods are actually committing fraud. The so-called organic foods are not organic, but are conventionally grown and the documents saying they are organic have been purchased for a price.

The investigative group Organic Eye that monitors the organic industry, including looking for fraud, has filed a lawsuit about this issue.

Many organic imported foods from places like China, Brazil, and Turkey are actually not organic, and this is why their "organic" foods are so inexpensive compared to foods grown by legitimate organic farmers here in the US. The Washington Post and others have written about the fraud. Buyer beware!

Yes, buy organic foods as much as possible, but try to buy organic foods grown and produced in the US, Canada, the European Union - and also from local farmers.

Excerpts from Organic Eye: Lawsuit Alleges Violation of Federal Law and a Green Light for Fraud - US Family Farmers Competitively Damaged, Consumers Deceived

Eugene, Ore. — When Oregon organic hazelnut grower Bruce Kaser started looking into why organic hazelnut imports from Turkey were priced so low, close to conventional hazelnuts, he found he was pulling on a thread that had the USDA certification of foreign commodities unraveling. His research exposed a systemic, conflict-ridden scandal, and led to the filing of a federal lawsuit on October 17 against the USDA, alleging a breach in the intent of Congress’ Organic Foods Production Act (OFPA). ...continue reading "Organic Foods From Other Countries May Not Be Organic"

Published on Leave a comment on Some Habits For Living A Longer and Healthier Life

There is tremendous interest in how to live a long and healthy life. This means trying to avoid getting diseases that so many suffer from as they age, such as diabetes, heart disease, and dementia. What diets are best? What kind of lifestyle?

NPR published a recent article about 7 daily habits linked to living a longer, healthier life, using information from Dan Buettner's work on blue zones. Scientific research supports the importance of these habits, especially good nutrition (for example, the Mediterranean diet) and physical activity.

The blue zones are communities throughout the world in which there are a lot of centenarians (people living to 100 years or more). What is important is that the people in these communities are aging with good health, and leading active and fulfilling lives - without dementia, and not in nursing homes.

The diets vary from place to place, but all avoid fast foods and highly processed foods. Instead, a lot of vegetables, fruits, whole grains, legumes (beans), and nuts are eaten. Little meat. Food is cooked at home. By the way, this type of diet is associated with a good gut microbiome, and generally a good gut microbiome goes with good health.

Unfortunately, these blue zone areas are now fading, due to changes in lifestyles  - fast food, etc. But a few other places are stepping up, trying to make living spaces healthier and incorporating what has been learned about health and longevity - for example, Singapore.

Bottom line: Research shows a diet rich in plant-based foods (whole grains, fruits, vegetables, nuts, seeds, legumes), plenty of sleep, lots of movement (physical activity), and a sense of purpose in life are all important in aging well.

Excerpts from correspondent Allison Aubrey article at NPR: 7 habits to live a healthier life, inspired by the world's longest-lived communities

At a time when life expectancy in the U.S. has dipped and diet-related disease is a leading cause of death, it's no wonder that Dan Buettner's decades-long exploration of centenarians who thrive in the longest-lived communities on Earth is attracting lots of attention. ...continue reading "Some Habits For Living A Longer and Healthier Life"

Published on Leave a comment on Documentary About Healthy Aging and Living Longer

There has been tremendous interest in the past decade over the best diet and lifestyle for aging well and living to a ripe old age. Author Dan Buettner has spent much of the past decade visiting communities around the world where there are many residents who live to 100 years or more, and in good health. He calls these communities blue zones.

Dan Buettner now has a good National Geographic documentary on Netflix called Live to 100: Secrets of the Blue Zones. This documents him visiting Blue Zones (Ikaria, Greece; Okinawa, Japan; Sardinia, Italy; Loma Linda, Calif.; and Nicoya Peninsula, Costa Rica) looking at the lifestyles and diets in this communities.

He found that while the diets vary, overall the people in these communities have a lot of plant based whole foods (especially whole grains, vegetables, beans, and tubers, such as sweet potatoes), and they avoid fast-food and highly processed foods. They do not take dietary supplements. They have a lot of physical activity in their daily activities, are committed to their families, take time to de-stress, and they have social networks with healthy behaviors.

He also recently published a book called The Blue Zones Secrets for Living Longer: Lessons From the Healthiest Places On Earth.