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Monday, July 29, 2024

Food poisoning


Foodborne illnesses, also known as food poisoning, are caused by consuming contaminated food or drink. Foodborne illnesses can be caused by a variety of pathogens, including bacteria, viruses and parasites, as well as toxins and chemicals.


Common pathogens

1.Bacteria

  • Salmonella: found in raw poultry, eggs and beef and can also be found in unwashed fruit and vegetables.
  • E. coli: found in undercooked beef, especially hamburger, unpasteurized milk and juice, and contaminated water.
  • Listeria monocytogenes: found in prepared foods, hot dogs and unpasteurized dairy products.


2. Viruses:

  • Norovirus: highly contagious and can be spread through contaminated food, water and surfaces.
  • Hepatitis A: can be transmitted through contaminated food and water, often spread by infected food handlers.


3. Parasites:

  • Toxoplasma: found especially in contaminated meat that has not been thoroughly cooked, such as pork, lamb and venison.
  • Giardia: often found in contaminated water and can be transmitted through food handled by infected people.


4.Toxins and chemicals:

  • Botulism: Caused by toxins produced by botulism, often found in improperly canned or preserved foods.
  • Scombroid poisoning: High levels of histamine are produced by eating fish that has not been properly preserved.
Symptoms:

Common symptoms of food poisoning include:

  • Nausea
  • vomiting
  • Diarrhea
  • Abdominal pain and cramps
  • Fire
  • Fatigue
The severity of symptoms largely depends on the pathogen, the amount of contaminated food ingested and the health status of the individual.


Recent trends and outbreaks:

  1. Salmonella outbreaks: CDC has been tracking several Salmonella outbreaks occurring in each state. These outbreaks have been linked to contaminated produce, poultry, and even pet foods.
  2. Hepatitis A: Cases of hepatitis A are on the rise in the US and are often associated with contaminated foods and poor hand hygiene of food handlers.
  3. Norovirus: Norovirus is a major cause of foodborne outbreaks, particularly in restaurants, cruise ships and long-term care facilities. It is highly contagious and can spread rapidly through contaminated food, water and surfaces .
  4. Listeria monocytogenes Outbreaks of Listeria monocytogenes have been associated with contaminated prepared foods and unpasteurized dairy products. This pathogen is particularly dangerous for pregnant women, newborns, the elderly and immunocompromised individuals .

Prevention:

1.Proper food handling and preparation:

  • Wash hands, utensils and food surfaces thoroughly.
  • Cook food at appropriate temperatures.
  • Separate raw meat from other foods to avoid cross-contamination.
  • Store food at safe temperatures.

2. Food safety practices:

  • Take precautions against raw eggs and undercooked meat, fish and seafood.
  • Choose pasteurized dairy products and fruit juices.
  • Wash fruits and vegetables thoroughly before eating.

3. Awareness and education:

  • Stay informed about recent food recalls and outbreaks.
  • Train food processors on proper hygiene and food safety practices.

Conclusion:

  • Foodborne illness remains a serious public health concern, with a variety of pathogens causing a range of symptoms. Staying informed about recent outbreaks and following appropriate food safety practices can reduce the risk of foodborne illness. 

Friday, July 26, 2024

sugar causes hyperactivity in children

 It is widely believed that sugar causes hyperactivity in children, but scientific evidence does not support this claim. Read more about this topic:


Myths:

The idea that sugar makes children hyperactive is a common belief among parents and caregivers. Consuming sugary foods and drinks is thought to increase children's energy levels and make them hyperactive.


Scientific research findings:

1.Research evidence: A number of studies have investigated the link between sugar intake and hyperactivity in children. The majority of well-controlled scientific studies found no significant evidence that sugar intake increases hyperactivity.

  • Placebo effect: Many studies have shown that parents' expectations, rather than the actual effects of sugar, can lead them to perceive that their child is hyperactive after consuming sugar. This is known as the placebo effect.
  • Behavioral observations: Observational studies often fail to control for other factors that may influence behavior, such as environment, excitement and the presence of other stimulating activities (parties, holidays, etc.)
2.Notable studies:

  • One study published in the Journal of the American Medical Association concluded that sugar does not affect children's behavior or cognitive abilities.
  • Another study found that parents who believed their children consumed sugar were more likely to rate their children as hyperactive, regardless of whether the child actually consumed sugar.

Factors affecting cognition:

  1. Context of sugar consumption: sugar is often consumed in situations that are naturally exciting for children, such as birthday parties, holidays and celebrations, which may trigger the association between sugar and hyperactivity.
  2. Attention to behavior: Parents pay more attention to their children's behavior after sugar consumption, which may lead to confirmation bias linking energetic behavior to sugar consumption.

Health considerations:

  1. Dietary balance: Although sugar does not cause hyperactivity, it is important to limit sugar intake because of its association with other health problems such as obesity, tooth decay and the risk of developing type 2 diabetes.
  2. Healthy alternatives: promoting a balanced diet rich in fruits, vegetables, whole grains and lean protein can support overall health and well-being.

Conclusion:

  • The idea that sugar causes hyperactivity in children is not supported by scientific evidence. While parents may observe behavioral changes associated with sugar intake, these are likely to be influenced by circumstances and expectations rather than the sugar itself. However, it remains important to moderate sugar intake for overall health and to promote a balanced diet in children.

probiotics

 What are probiotics?

Probiotics are live microorganisms, often referred to as 'good' or 'friendly' bacteria, which provide health benefits when consumed in sufficient quantities. Probiotics are known to improve or restore the gut microbiota.


Benefits of probiotic yogurt

  1. Digestive health: probiotics balance the gut microbiota, improve digestion and prevent problems such as constipation and diarrhea.
  2. Immune support: Healthy gut flora boosts the body's immune response.
  3. Nutrient absorption: probiotics increase the absorption of vitamins and minerals from food.
  4. Mental health: New research shows a link between gut health and mental health and may help with symptoms such as anxiety and depression.

Common probiotic strains found in yogurt:

  1. Lactobacillus acidophilus
  2. Bifidobacterium bifidum
  3. Lactobacillus casei
  4. Streptococcus thermophilus
  5. Lactobacillus bulgaricus

Probiotic-rich yogurt varieties:

  • Greek yogurt: thick, creamy, high in protein, usually containing more than one strain of probiotics.
  • Regular yogurt: traditional yogurt, not as thick as Greek yogurt, but rich in probiotics.
  • Kefir: fermented milk drink with a pungent flavor, usually contains more probiotic strains.
  • Non-dairy yogurts: made from plant-based milks such as almond, coconut and soy and can be enriched with probiotics.

How to choose a probiotic-rich yogurt

  • Check the label: Look for yogurts with live or active cultures on the label.
  • Minimal ingredients: choose yogurts with minimal added sugar or artificial ingredients to maximize health benefits.
  • Plain yogurt: Choose plain yogurt and add fruit or sweeteners to reduce sugar intake.
  • Fortified yogurts: Some yogurts are fortified with probiotics.

Include probiotic yogurts in your diet:

  1. Breakfast: Enjoy yogurt with granola, nuts and fresh fruit.
  2. Smoothie: Mix yogurt with fruit and vegetables for a nutritious drink.
  3. Snacks: Dip yogurt in vegetables or use it as a base for healthy dips.
  4. Cooking and baking: use yogurt instead of sour cream or mayonnaise to boost probiotic benefits.

Conclusion:

  • Probiotic-rich yogurt is a delicious and convenient way to support gut health and overall wellbeing. When choosing yogurt, choose a yogurt that contains live, active bacterial cultures, has minimal added sugar and uses ingredients that match your dietary preferences.

Coconut oil

 Coconut oil is a versatile oil extracted from the sap of the coconut. Coconut oil is a versatile oil extracted from the pulp of the coconut and has a wide range of uses and benefits for both cooking and personal care. Here are some highlights about coconut oil:

Types

  1. Extra virgin coconut oil: made from fresh coconut pulp and has a mild coconut flavor. It is more nutritious than refined coconut oil and has a higher smoke point.
  2. Refined coconut oil: made from dried coconut meat (copra) and has a neutral flavor. It has a higher smoke point but is less nutritious.

Uses:

  1. Cooking: Coconut oil is popular because of its high smoke point (about 350-400°F, 175-200°C) and suitability for sautéing, baking and frying. It can add a mild coconut flavor to food.
  2. Baking: Can be used as a substitute for butter or other oils in baking recipes.
  3. Skin care : Use as a moisturizer, makeup remover and to treat dry skin and mild irritations.
  4. Hair care: As a conditioner and hair mask to moisturize hair and add shine.
  5. Oil splashing: the traditional practice of swishing coconut oil around the mouth to improve oral health.

Health benefits:

  1. Medium-chain triglycerides (MCTs): Coconut oil contains MCTs, which are easily metabolized by the body and are thought to support energy levels and weight management.
  2. Antibacterial properties: The lauric acid in coconut oil has antibacterial properties that help fight bacteria, viruses and fungi.
  3. Heart health: The effect of coconut oil on heart health continues to be debated. Coconut oil contains saturated fatty acids, which can affect cholesterol levels, but some studies suggest that it may not have the same effect as other saturated fatty acids.

Points to consider:

  1. Calories: Coconut oil is high in calories and fat and should be used in moderation.
  2. Allergies: Although rare, some people are allergic to coconut oil.
  3. Quality: organic, unrefined and cold-pressed oils have fewer additives and better health benefits.

Storage:

  • Coconut oil can be stored at room temperature, but may solidify at lower temperatures. It has a long shelf life, usually two years, when stored in a cool, dark place.
  • Coconut oil is versatile and is often used for a variety of applications, from cooking to personal care.

Thursday, July 25, 2024

HIIT (High Intensity Interval Training)

 HIIT (High Intensity Interval Training) is an aerobic exercise that replaces short periods of intense anaerobic exercise with less intense recovery periods. The main aspects of HIIT are described here:

  • Benefits:
  • Efficient exercise: Although HIIT training is usually shorter in terms of training duration, it can be as effective as, or even more effective than, a long steady-state aerobic exercise session.
  • Increased metabolic rate: HIIT can boost metabolism for several hours after exercise.
  • Improved cardiovascular health: Regular HIIT improves heart health, blood pressure and cardiovascular function.
  • Muscle preservation: HIIT helps preserve muscle mass while promoting fat loss.
  • Versatility: HIIT can be combined with a variety of other exercises such as running, cycling and bodyweight exercises.

Basic structure:

  • Warm-up:  Begin with a 5-10 minute warm-up to prepare the body.
  • Intervals: alternate high-intensity exercises (e.g. sprints, jumping jacks, burpees) with low-intensity recovery time or rest.
  • High intensity: 20-60 seconds of maximal effort.
  • Low intensity: 10-60 seconds of active or complete rest.
  • Cool down: 5-10 minutes of cool down and stretching to finish.

Examples of HIIT workouts

  • Warm-up: 5 minutes jogging or brisk walking. 
  • Intervals:

  1. Sprint 30 sec.
  2. 30 seconds walking.
  3. Repeat for 10 rounds.

  • Cool down: 5 minutes of light jogging or walking, followed by stretching.

HIIT tips

  • Start slowly: If you are new to HIIT, start with short intervals and gradually increase intensity and duration.
  • Start with form: To avoid injury, use correct form, especially for high-intensity exercises.
  • Rest and recovery: Allow your body to recover between HIIT sessions to avoid overtraining.
  • Listen to your body: Adjust the intensity and duration according to your fitness level and your body's response.

Variations:

  • Tabata: 20 seconds of exercise followed by 10 seconds of rest for 4 minutes.
  • Circuit training: Combine different exercises in a circuit format with minimal rest between exercises.
  • Pyramid intervals: lengthen or shorten the duration of the intervals (e.g. 30, 45, 60, 45, 30 seconds).

HIIT is an adaptable and effective method of exercise as it can be customized to suit individual fitness levels and preferences.

Monday, July 22, 2024

Nipah virus (NiV)

 Nipah virus (NiV) is a zoonotic virus transmitted from animals to humans and was first identified in Malaysia in 1998 in an outbreak among pig farmers and people in close contact with pigs. Since then, outbreaks have occurred regularly in South and Southeast Asia.


Below are some highlights of the Nipah virus :

  • Transmission: The main reservoir of Nipah virus is its natural host, the fruit bat, especially species of the genus Pteropus. Transmission to humans occurs through direct contact with infected bats and their feces (e.g. saliva and urine). Human-to-human transmission can also occur through close contact, especially with infected individuals.


  • Symptoms: symptoms of nipah virus infection range from asymptomatic or mild respiratory illness to severe encephalitis (inflammation of the brain) characterized by fever, headache, lethargy, disorientation and mental confusion. In severe cases, coma can occur within 24-48 hours.


  • Prevention: Prevention includes avoiding contact with bats and their habitat, avoiding consumption of fruit that may have been contaminated by bats, and practicing strict infection control in healthcare settings during outbreaks.


  • Treatment: there is no specific antiviral treatment for nipah virus infection. Supportive care is important, focusing on symptom management and intensive supportive care for patients.


  • Outbreaks: Nipah virus outbreaks have occurred sporadically in Bangladesh, India and other parts of Southeast Asia. The World Health Organization (WHO) is monitoring and responding to outbreaks and providing technical assistance to affected countries.


Nipah virus is recognized as a serious public health concern due to its high mortality rate (up to 75% in some outbreaks) and potential for human-to-human transmission. Vigilance in surveillance, early detection and rapid response is essential to contain the outbreak and prevent its spread.


Basic treatment and therapy for Nipah virus :

There is currently no specific antiviral treatment or therapy for Nipah virus infection. Treatment mainly involves supportive and symptomatic therapies. Important aspects of managing Nipah virus infection include


  • Supportive care: supportive care: patients with nipah virus infection require intensive supportive care to address symptoms and complications. This includes measures to maintain hydration, electrolyte balance and adequate nutrition.


  • Symptomatic treatment: depending on the situation, medication may be used for antipyretics, analgesia, management of respiratory difficulties and treatment of complications such as seizures.


  • Infection control: strict infection control measures are essential to prevent viral infections in healthcare settings. These include the use of personal protective equipment (PPE) by healthcare workers, isolation of infected persons and the implementation of appropriate hygiene practices.


  • Experimental treatments: Experimental treatments, such as antiviral drugs or monoclonal antibodies, may be considered on a case-by-case basis during outbreaks. However, these treatments are still in the research phase and are not widely available.


  • Prevention: Prevention strategies focus on avoiding contact with infected animals (especially bats), practicing effective hygiene practices, and maintaining awareness in infected communities to reduce the risk of human-to-human transmission.


Given the severity and epidemic potential of Nipah virus infection, early detection, rapid response and public health measures are crucial to reduce the spread of the virus and provide supportive care to infected individuals.

Monday, July 15, 2024

Pregnant women and their nutrition intake


Pregnant women need more nutrients and a balanced diet to support the health of both the mother and the developing baby.

This section describes the nutrients and dietary requirements of pregnant women:

Essential nutrients:

Folic acid:

  • Importance: Essential for the prevention of neural tube defects.
  • Sources: green leafy vegetables, citrus fruits, pulses, fortified cereals.
  • Supplements: Prenatal vitamins containing folic acid are generally recommended before and during pregnancy.


Iron:

  • Importance: Promotes increased blood volume and prevents anemia.
  • Sources: red meat, poultry, fish, lentils, spinach, fortified cereals.
  • Supplementation: May be necessary during pregnancy as iron needs increase significantly.


Calcium:


  • Importance: Essential for the development of the baby's bones and teeth.
  • Sources: dairy products, fortified vegetable milks, tofu, leafy vegetables.
  • Supplementation: if dietary intake is insufficient.


Vitamin D:

  • Importance: Helps calcium absorption and bone health.
  • Sources: sun exposure, oily fish, fortified milk, eggs.
  • Supplementation: usually found in prenatal vitamins.


Omega-3 fatty acids (DHA):

  • Importance: supports brain and eye development.
  • Sources: oily fish (e.g. salmon and sardines), flaxseed, chia seeds, walnuts.
  • Supplementation: Fish oil supplements may be considered if dietary intake is low.


Protein:

  • Importance: Essential for the growth of fetal tissues, including the brain, and increases blood flow.
  • Sources: red meat, poultry, fish, eggs, dairy products, legumes, nuts and seeds.


Iodine: 

  • Importance: Essential for thyroid function and brain development.
  • Sources: iodized salt, dairy products, fish and seafood, eggs.


Vitamins B6 and B12:

  • Importance: B6 helps with morning sickness, B12 supports nerve function and red blood cell production.
  • Sources: B6 - poultry, fish, bananas, potatoes; B12 - meat, dairy products, fortified cereals.


Dietary considerations:

  • Hydration: drink enough fluids to support increased blood volume and amniotic fluid levels.
  • Balanced diet: include a variety of foods from all food groups to provide a wide range of nutrients.


Avoid certain foods: avoid foods that pose a risk of food poisoning or contain toxic substances:

  • Raw or undercooked meat, poultry and fish.
  • Unpasteurized dairy products and fruit juices.
  • Some fish high in mercury (shark, swordfish, mackerel, tilefish).
  • Deli meats and hot dogs should not be cooked until steaming.

Eat small, frequent meals: Eating smaller, more frequent meals can help reduce nausea and maintain energy levels.
Limit caffeine: Limit caffeine intake to fewer than 200 mg (12 oz) cups per day.
Healthy snacks: choose nutritious snacks such as fruit, vegetables, yogurt and nuts.


Consult a health professional:


  • Pregnant women should consult their doctor or registered dietitian to ensure they are getting the right nutrients through a meal plan that meets their individual needs. Regular prenatal check-ups can help monitor nutritional status and make any necessary adjustments.