Beware: Your food might contain these toxins

Agencies
June 2, 2017

New Delhi, Jun 2: Ever thought you would be consuming heavy metals or cigarette butts with your food? As a rule of thumb, foods are generally safe. However, there are things that get into food, which could shock and disgust you enough to keep away from food altogether.toxins

What will surprise you further is that many of these things are permitted by the food safety authorities, but within limits. Some substances, like certain toxins, are naturally present in foods. And so, even if the food authorities wanted, they could not ban them totally.

Some of these ‘foreign’ substances might not be dangerous, but not even in your wildest imagination could you have thought that they could be on your plate, says Dr Saurabh Arora, founder, Food Safety Helpline.com.

1. Snack with maggots.

Next time you eat a burger or open sealed packs of foods, or cans of mushrooms and tomatoes, check carefully. It could be infested with maggots and insect eggs. Your cabbage and spinach could have caterpillar larvae in it. Believe it or not, a limited number of maggots are permitted in food, says Dr Arora.

2. Ever wondered what rats do in your food?

Rodents scavenge for food and rummage in food stocks. In fact, rodents could make stored foods their home if entry is not strictly prevented. Where there is laxity, rodent hair, urine and droppings enter foods and from there to your plate. So watch out as your food could be biologically contaminated.

3. They live in drains, dustbins and in your food.

Cockroaches, flies, insects of all kinds, and even spiders, and lizards can fall into food and are regarded as being highly dangerous if found in foods as they can carry bacteria from dustbins and drains to foods. The presence of rodents and insects is a food safety violation that could result in cancellation of license for food establishments.

4. What are cleaning agents doing in your food?

Cleaning agents like ammonia, bleach, dishwashing liquids and sanitizers can cause turmoil. People have had them with their coffee because the personnel forgot to rinse out the coffee machine thoroughly. Human error it could be but the carelessness in not rinsing and washing utensils or cooking surfaces thoroughly can lead to not only a bad taste but some stomach burning and even food poisoning. Cleaning agents need to be stored away from all food preparation areas and utensils. Cooking and food preparation surface areas must be cleaned, washed and sanitised only when food preparation is over and no food is outside. Such carelessness ruins reputations of food establishments.

5. Unseen dangers have roots.

Moulds and fungus grow on foods when the temperature is warm. The rainy season finds these in abundance in sauces, jams, jellies, cooked and processed meats and poultry, cheese, bread and even fruit. Surface moulds can be washed or dusted off but that does not mean they have gone away completely. The fungus has roots that go deep into foods and these are not visible to the naked eye. Dishcloths, towels, sponges and mops, if not kept clean, spread moulds which land up in your food. Avoid anything smelling musty and stale, and check vegetable and fruit stems to detect moulds.

6. Are you sure your milk products have no melamine?

Are you sure that the infant formula you are feeding your child with, or the chocolate and frozen yogurt you are eating is free of melamine? Melamine is synthetic material used to make plastic tableware and dishware, adhesives and even whiteboards. So what’s it doing in your food? Water is often mixed into milk and such milk loses proteins. So to enhance the content of protein, melamine is mixed in it. Products made from milk could have melamine which can damage the kidneys permanently.

7. Packaging infuses chemicals into food.

Antimony and tin are used in packaging materials from where they can enter food. Foils, cans, pans and storage containers have chemicals which can be released from them into food at low levels. When ingested, they cause various health problems.

8. You could be ingesting heavy metals.

Copper, brass, cadmium, lead, zinc, mercury and even arsenic could be in your food. Metals leach into foods from the environment and from utensils used for cooking and serving food. Cracked or chipped pewter dishes, pottery dishes with glazed lead, or those pretty enamelled dishes you cook and serve food in can leave lead or cadmium in your foods and can even react with acidic foods like tomatoes, orange juice and pickles. Copper cooking utensils, buckets and tubs made from galvanised metals like zinc, and plumbing pipes also introduce metals into foods. Mercury and arsenic can reach foods through water and cadmium and lead from soil. All these heavy metals can cause toxicity when ingested and could even damage the liver, kidneys, central nervous system and blood, while mercury can cause sensory, visual and auditory problems also. Since chemicals cannot be seen, adequate and regular food testing is required to ensure that foods are free from these elements at all points in the food chain.

9. Tea with a taste of iron.

Iron filings can enter tea when it is processed as particles escape into tea from the wear and tear of iron machinery. Iron remains in the body and though some iron is good for the body, it could become dangerous and lead to heart problems if you are a tea addict and drink copious amounts of it. The permissible limit for iron filings in tea in India is presently 150 mg per kilogram of tea.

10. Human beings leave their own stamp on foods.

While human hair found in food might not be as hazardous as animal hair, but their presence in food indicates that the establishment lacks in good hygienic practices. Besides hair; nails, false nails, nail polish, pieces of jewellery, paper napkins and even cigarette butts can enter food and have been found, more often than anyone would like to admit. All personnel working in the food service industry need to be made aware of these hazards and instructed and trained to follow good hygiene practices.

11. Mice and horse in your processed meat.

Animal hair or chipped pieces of bone can be naturally present in meat food products. Perhaps what you may not be aware of is that whole mice can sometimes be churned into foods during processing. Unscrupulous manufacturers add horse and even rat meat to canned meat food products to cut costs, especially those imported, as some countries permit horse meat.

12. Extraneous materials that can break your teeth.

They say sticks and stones won’t break bones but stones in food might break your pearly whites. You must have seen dirt, mud, manure, leaves, twigs and other filth and even insect excreta in some raw grains and other agricultural products. While some of these can be removed by picking them out, what about insect excreta? When raw materials are processed into cereals and bakery products, do these remain or have they been cleaned before processing?

13. What’s cooking, metal or glass?

Metal fragments from worn or chipped equipment and containers enter food products during processing. However, glass, plastic and metal pieces from glass tumblers, edges of badly opened tin cans, and carelessly opened caps on foods, and even shattered light bulbs fall into food without anyone realising it. Wood pieces from wooden surfaces or chopping boards slip into food too. Even a small piece of any of these substances can cause major problems if swallowed. Most establishments use shatterproof bulbs and open tin cans and bottles away from foods being cooked.

14. Sand and sawdust special.

Have you felt that grit on your tongue? It could be sand in your salt, soup and coffee whitener. Sand is mixed in powdered foods as sand absorbs moisture and prevents clumping. Sawdust is used for the same reason in foods like shredded cheese. It also makes low-fat ice cream creamy and ready-to-drink milkshakes smooth.

15. Are these food additives really permitted?

The fruit juice you enjoy so much could have sulphites. Sulphites are deliberately added to fruit juices, in some soft drinks, instant tea vinegar and wine to keep them tasting fresh. While preservatives and flavour enhancers improve the looks and taste of foods yet some of them could cause allergic reactions.

16. Of hormones and antibiotics.

Livestock are given antibiotics and growth hormones in their feeds so they can remain healthy and grow bigger quickly. If you are a non-vegetarian, you could find these growth hormones and antibiotics in the animal meats which you eat. Eating animal meats that contain antibiotic makes you resistant to them.

17. From plants to your plate.

Residues of pesticides, herbicides and chemical fertilizers used during the agricultural process easily find their way into food. Pesticides may leave residues on the skins and surface of fruits and vegetables. Residues of pesticides and herbicides, over a period of time, can affect the central nervous system, respiratory and gastrointestinal system.

18. Gelatine: veg or non-veg?

Some vegetarian foods like certain cereals could contain animal gelatine which is used as a binding agent so that the sugar sticks to the cereal. Read the labels minutely if you are a vegetarian or you could find you’ve just eaten animal bone and skin as some gelatine are made from these.

19. Carcinogens in your foods.

Bright coloured foods look attractive but the truth is that synthetic dyes like Red 3 and Citrus Red 2, Blue 1, Blue 2, Green 3, Red 40 and Yellow 6 are carcinogenic and could cause various kinds of cancer and allergic reactions too.

20. What does your chewing gum contain?

If you are one of those who loves to pop a chewing gum into your mouth, then you could actually be eating a secretion from sheep wool called Lanolin. This additive is used in chewing gum because it has an oily texture which makes it easy to chew that gum.

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News Network
July 10,2020

Toronto, Jul 10: Pasteurising breast milk at 62.5 degrees Celsius for 30 minutes inactivates the SARS-CoV-2 virus that causes Covid-19, making it safe for consumption by babies, a study claims.

According to the research published in the Canadian Medical Association Journal, current advice for women with Covid-19 is to continue to breastfeed their own infants.

In Canada, it is standard care to provide pasteurised breast milk to very-low-birth-weight babies in hospital until their own mother's milk supply is adequate, the researchers said.

"In the event that a woman who is Covid-19-positive donates human milk that contains SARS-CoV-2, whether by transmission through the mammary gland or by contamination through respiratory droplets, skin, breast pumps and milk containers, this method of pasteurisation renders milk safe for consumption," said Sharon Unger, a professor at the University of Toronto in Canada.

The Holder method, a technique used to pasteurise milk in all Canadian milk banks at 62.5 degrees Celsius for 30 minutes, is effective at neutralising viruses such as HIV, hepatitis and others that are known to be transmitted through human milk, the researchers said.

In the latest study, the researchers spiked human breast milk with a viral load of SARS-CoV-2 and tested samples that either sat at room temperature for 30 minutes or were warmed to 62.5 degrees Celsius for 30 minutes.

They then measured for active virus, finding that the virus in the pasteurised milk was inactivated after heating.

More than 650 human breast milk banks around the world use the Holder method to ensure a safe supply of milk for vulnerable infants, the researchers said.

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Agencies
July 24,2020

Colorado, Jul 24: A new study has found that physical stress in one's job may be associated with faster brain ageing and poorer memory.

Aga Burzynska, an assistant professor in the Department of Human Development and Family Studies, and her research team connected occupational survey responses with brain-imaging data from 99 cognitively normal older adults, age 60 to 79. They found that those who reported high levels of physical stress in their most recent job had smaller volumes in the hippocampus and performed poorer on memory tasks. The hippocampus is the part of the brain that is critical for memory and is affected in both normal ageing and in dementia.

Their findings were published this summer in Frontiers in Human Neuroscience under the research topic 'Work and Brain Health Across the Lifespan.'

"We know that stress can accelerate physical ageing and is the risk factor for many chronic illnesses," Burzynska said. "But this is the first evidence that occupational stress can accelerate brain and cognitive ageing."

She added that it is important to understand how occupational exposures affect the ageing of our brains.

"An average American worker spends more than eight hours at work per weekday, and most people remain in the workforce for over 40 years," Burzynska said. "By pure volume, occupational exposures outweigh the time we spend on leisure social, cognitive and physical activities, which protect our ageing minds and brains."

Physical demands at work

Burzynska explained that the association between "physical stress" and brain/memory were driven by physical demands at work. These included excessive reaching, or lifting boxes onto shelves, not necessarily aerobic activity. This is important because earlier work by Burzynska and her colleagues showed that leisure aerobic exercise is beneficial for brain health and cognition, from children to very old adults. Therefore, the researchers controlled for the effects of leisure physical activity and exercise.

As expected, leisure physical activity was associated with greater hippocampal volume, but the negative association with physical demands at work persisted.

"This finding suggests that physical demands at work may have parallel yet opposing associations with brain health," Burzynska explained. "Most interventions for postponing cognitive decline focus on leisure, not on your job. It's kind of unknown territory, but maybe future research can help us make some tweaks to our work environment for long-term cognitive health."

She added that the results could have important implications for society.

"Caring for people with cognitive impairment is so costly, on economic, emotional and societal levels," Burzynska said. "If we can support brain health earlier, in middle-aged workers, it could have an enormous impact."

The researchers considered and corrected for several other factors that could be related to work environment, memory and hippocampus, such as age, gender, brain size, educational level, job title, years in the occupation and general psychological stress.

One piece of the puzzle

"The research on this topic is so fragmented," Burzynska said. "One previous study linked mid-life managerial experience with greater hippocampus volume in older age. Another showed that taxi drivers had larger hippocampi than a city's bus drivers, presumably due to the need to navigate. In our study, job complexity and psychological stress at work were not related to hippocampal volume and cognition. Clearly, our study is just one piece of the puzzle, and further research is needed."

The magnetic resonance imaging (MRI) data used for the study was collected at the University of Illinois Urbana-Champaign between 2011 and 2014.

CSU researchers now can collect MRI data with the new 3T scanner at the University's Translational Medicine Institute.

With this new capability, Burzynska, along with Michael Thomas and Lorann Stallones of CSU's Department of Psychology, is launching a new project, "Impact of Occupational Exposures and Hazards on Brain and Cognitive Health Among Aging Agricultural Workers," which will involve collecting MRI brain scans and identifying risk and protective factors that could help the agricultural community age successfully. The project recently obtained funding as an Emerging Issues Short-Term Project from the High Plains Intermountain Center for Agricultural Health and Safety.

The Department of Human Development and Family Studies is part of CSU's College of Health and Human Sciences.

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Agencies
May 26,2020

Tedros Adhanom Ghebreyesus, the World Health Organisation's (WHO) Director-General, said that a clinical trial of hydroxychloroquine (HCQ) on COVID-19 patients has come to "a temporary pause", while the safety data of the the anti-malaria drug was being reviewed.

According to the WHO chief, The Lancet medical journal on May 22 had published an observational study on HCQ and chloroquine and its effects on COVID-19 patients that have been hospitalized, reports Xinhua news agency.

The authors of the study reported that among patients receiving the drug, when used alone or with a macrolide, they estimated a higher mortality rate.

"The Executive Group of the Solidarity Trial, representing 10 of the participating countries, met on Saturday (May 23) and has agreed to review a comprehensive analysis and critical appraisal of all evidence available globally," Tedros said in a virtual press conference on Monday.

The review will consider data collected so far in the Solidarity Trial and in particular robust randomized available data, to adequately evaluate the potential benefits and harms from this drug, he said.

"The Executive Group has implemented a temporary pause of the HCQ arm within the Solidarity Trial while the safety data is reviewed by the Data Safety Monitoring Board. The other arms of the trial are continuing," Tedros added.

WHO initiated the Solidarity Trial, a plan to evaluate the safety and efficacy of four drugs and drug combinations against COVID-19 more than two months ago, which include HCQ.

According to the WHO, over 400 hospitals in 35 countries are actively recruiting patients and nearly 3,500 patients have been enrolled from 17 countries under the Solidarity Trial.

Tedros added that the safety concern over the drug related only to the use of HCQ and chloroquine in COVID-19, and "these drugs are accepted as generally safe for use in patients with autoimmune diseases or malaria".

"WHO will provide further updates as we know more," he added.

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