Switching To Plant-Based Diet Could Help You Live Longer

Updated Feb 3, 2025 | 10:00 AM IST

SummaryStudies have found that a plant-based diet that replaces half of ones red and processed meat would increase people's life expectancy an average of nine months, while cutting their diet-related carbon footprint by 25%.
Plant-based diets

You are what you eat, and to science it is true. People live longer based on what they choose to eat. With such a thought, Canadians took on to a UK-based challenge of eating vegan for a month. The challenge is called Veganuary (Vegan + January). For many, it is not a hidden fact that eating less meat and more plants is good for our health and it can cut food-related emissions, which make up to a third of the greenhouse causing climate change. However, going vegan isn't really a smooth change, rather a big step. It means to revamp our entire diet.

The good news is, that there have been researches that prove that even relatively small substitutions of red meat with plant-based proteins like tofu, lentils and beans can add months, sometimes years to our expected lifespan. It can also make a noticeable dent in our carbon footprint.

The Rise Of Vegetarianism

As per 2018, only 7.1% of Canadians were vegetarian and 2.3% were vegan. Olivia Auclair, a research fellow at the University of Oxford, who researched on Canadian's eating habits told CBC that Canadians get 65% of their protein from animal sources. Only 5% of the protein comes from the high-protein plant-based sources. Some of these are also included in Canada's Food Guide.

It is true that eating habits, along with shopping habits are hard to change, this is why Auclair's research tried to bring people more in line with the food guide. The Canada Food Guide recommends lots of fruits, vegetables and whole grain, along with protein from both animal and plant sources.

ALSO READ: Is Plant-Based Cheese The Future?

What is the study all about?

Her research was published last year in the journal Nature Food, titled Partial substitutions of animal with plant protein foods in Canadian diets have synergies and trade-offs among nutrition, health and climate outcomes, found that replacing half their red and processed meat would increase people's life expectancy an average of nine months, while cutting their diet-related carbon footprint by 25%.

For her research, she analyzed what 13,600 Canadians ate based on the Statistics Canada data from "food diaries" recorded by them in 2015. After that, she modelled what could happen if the same people substituted 25 to 50% of the red and processed meat they had been consuming with plant-based proteins. However, they did not change their poultry, fish or seafood intake.

The results were great, as mentioned above. In fact, there was more. The health benefits were double for men compared to women!

Men gained one full year of increased life expectancy, on average. This is also because men eat more red and processed meats and the climate benefits were also higher for men cutting down on the meat.

CHECK OUT: Can A Vegan Diet Help You Loose Weight ?

Plant-based Diets

In 2019, an international group of scientist recommended a planetary health diet, a plant-based diet rich in fruits, vegetables, legumes, nuts and whole grain, with small amounts of meat, dairy and fish, similar to what is recommended by the Canada Food Guide. The reason for such a recommendation was also to prevent 11 million deaths per year from processed meats and help keep greenhouse gas emission from food.

Another US study that looked at 200,000 US healthcare workers found that eating a plant-based diet could reduce a person's risk of dying by 30% from heart diseases, cancers, and respiratory diseases. Another 2021 Swedish study found a similar benefit, where it saw a 25% drop in mortality for those who adhere to a plant-based diets.

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PCOD Diet: Why Watermelon Is Not The Best Summer Fruit For All Women

Updated Apr 27, 2026 | 06:00 PM IST

SummaryDespite being a fruit with a low glycemic index, watermelon has an adverse impact on women dealing with PCOD.
PCOD Diet

If you are craving watermelon this summer, here's what you must know about the fruit. (Photo credit: AI generated)

Watermelon is a popular summer fruit known for its high water content, making it excellent for hydration. It also contains vitamins A and C, and antioxidants like lycopene. While watermelon is a hydrating and nutritious fruit often recommended for summer, eating too much of it can have specific impacts on women with Polycystic Ovarian Disease (PCOD), particularly due to its sugar content and potential for digestive issues.

Does watermelon help women dealing with PCOD?

Dr S K Wangnoo, Senior Consultant, Endocrinology, Indraprastha Apollo Hospital, Delhi, while discussing the effects of watermelon consumption on women with PCOD, said that overconsumption of the fruit may lead to blood sugar spikes, which can worsen insulin resistance—a common characteristic of PCOD—and trigger symptoms such as weight gain and fatigue. The expert further explained why this happens.

  1. Blood sugar spikes: Despite being considered a low-GI fruit, consuming large quantities of watermelon can lead to significant increases in blood sugar levels, which is a concern for women with PCOD who often struggle with insulin resistance.
  2. Worsened insulin resistance: Frequent blood sugar spikes from overeating high-sugar foods, including fruits like watermelon, can exacerbate insulin resistance, making PCOD symptoms more difficult to manage.
  3. Digestive issues: Excessive watermelon intake can cause bloating, gas, and diarrhoea due to its high water and fibre content, especially if consumed in very large amounts.
  4. Weight management challenge: Increased sugar intake, even from fruit, can contribute to a calorie surplus if not balanced, potentially hindering weight management efforts crucial for PCOD.
  5. Considered PCOD-friendly in moderation: Watermelon is generally listed among fruits suitable for a PCOD diet due to its relatively low glycaemic index compared to some other fruits, but the key is moderation.

Why do women with PCOD need balanced nutrition?

Viveka Kaul, Chief Diabetes Educator & Nutritionist, Endocrinology Department, Apollo Hospitals, said, “Balanced nutrition plays a critical role in managing PCOD, particularly in regulating insulin response and reducing chronic inflammation, both of which are key drivers of the condition. What women eat throughout the day has a direct impact on blood sugar levels, which in turn influences hormonal balance and symptom severity.”

The ideal dietary routine for women with PCOD

Foods that are high in fibre and protein help slow down glucose absorption, preventing sudden spikes in blood sugar that can trigger excess insulin release. Over time, repeated insulin spikes can worsen androgen production, leading to symptoms such as acne, irregular periods, and weight gain. Including healthy fats in the diet further improves insulin sensitivity and supports overall metabolic stability.

Viveka Kaul went on to say that frequent consumption of refined carbohydrates and sugary foods can keep insulin levels consistently elevated, making it harder to manage PCOD effectively. The focus should shift from restriction to balance and consistency. Pairing carbohydrates with protein or healthy fats, maintaining regular meal timings, and avoiding long gaps followed by heavy meals can help keep energy levels stable and prevent metabolic stress. Over time, these steady dietary habits can lead to meaningful improvements in both hormonal health and symptom control.

Key dietary practices for PCOD management

  1. The expert listed some simple dietary suggestions to help women living with PCOD:
  2. Balance carbohydrates with protein or fats: helps slow sugar absorption
  3. Eat at regular intervals: prevents blood sugar fluctuations
  4. Choose high-fibre foods: improves insulin response
  5. Include healthy fats: supports hormone balance
  6. Avoid refined sugars: reduces insulin spikes
  7. Limit processed foods: helps lower inflammation
  8. Focus on whole foods: improves overall metabolic health
  9. Control portion sizes: prevents excess calorie intake
  10. Stay consistent with meals: supports hormonal stability
  11. Hydrate adequately: aids metabolism and overall function

Ultimately, managing PCOD through diet is about building sustainable, everyday habits rather than following short-term fixes. Consistency in food choices, portion control, and meal timing can gradually improve insulin sensitivity and hormonal balance. When combined with regular physical activity and adequate sleep, these dietary practices can significantly reduce symptom severity and support long-term reproductive and metabolic health.

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Street Food in Summer: How Your Cravings Could Lead To Food Poisoning, Gut Infections

Updated Apr 26, 2026 | 03:00 PM IST

SummaryDuring summer, street food can likely spoil faster than usual because it is not often refrigerated properly.
street food in summer

If you love street food, it is advised to go for healthier, homemade options this summer. (Photo credit: iStock)

Indian food is loved across the world—and this cuisine is not just popular for its curries but also for its street food. From gol gappas to samosas to the Indian version of Chinese food, there is so much that the streets offer, and at low prices as well. Yet, the one concern that prevails in the case of street food is cleanliness. Hygiene is rarely maintained when it comes to street food, and during summer, when food can spoil within hours, street food becomes riskier to eat. That being said, an expert has shared insights on the risks of eating street food in summer.

What are the risks involved with eating street food in summer?

Dr Saswata Chatterjee, Gastroenterologist—CK Birla Hospitals, CMRI, in an interview with Health and Me, shared insights on the health risks of eating street food in summer. The expert said that your cravings could lead to food poisoning and even gastroenteritis.

"Food poisoning and acute gastroenteritis (also referred to as 'gastro') have both risen dramatically during the summer months. Many of these illnesses result from poor street food hygiene practices. The hot weather allows for the rapid multiplication of bacteria such as E. coli, Salmonella, and Staphylococcus when they are present in food that has been inadequately protected from contamination and/or hygienically prepared (i.e. raw vs. cooked)," Dr Chatterjee explained.

Why does street food spoil fast?

On the one hand, street food is prepared fresh for immediate consumption. However, sometimes a day's leftovers are carried forward to the next day. Due to extreme heat and inadequate equipment for refrigeration, your favourite street foods are likely to spoil faster than they usually do.

Street food is popular with the public but generally lacks adequate temperature control and sanitary conditions. For example, cut fruit, chutneys, dairy products, and used cooking oil that has been reheated and recycled carry a much higher risk during the heat of summer. In addition, the water used in ice, making pani puris, or any beverage can be a significant source of contamination.

What are the symptoms of gastroenteritis?

Patients usually present with symptoms including, but not limited to, vomiting, diarrhoea, abdominal cramps, fever, and dehydration. Although most patients recover quickly from mild gastroenteritis, in some individuals — especially children, older adults, and those with impaired immunity — complications may lead to severe dehydration or even death.

Staying safe this summer

To prevent illness, raising consumer awareness and providing education are critical. In most cases, it is preferable to eat food that has been prepared in a hygienic manner. Hot, freshly cooked foods are better than cold foods or food that has been left out for long periods of time. It is also wise to avoid eating raw or pre-cut foods from open markets.

If you are craving street food, try making it at home in a more hygienic and controlled manner. Use cleaner and healthier ingredients and enjoy right away. Avoid storing these foods, and if you do, try healthier practices such as refrigeration at a safe temperature in a dry environment.

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Eating Unwashed Fruits? Neurologist Says Pesticide Residue May Give You Parkinson's

Updated Apr 26, 2026 | 07:00 AM IST

SummaryPesticide residues, Parkinson’s disease, and what every Indian family should know — without fear, but with awareness.

Washing fruits thoroughly is important because pesticide residue in them can make you fall sick. (Photo credit: iStock)

Every morning across India, fresh fruit finds its way onto the table — mangoes in summer, bananas year-round, grapes, guavas, and more. It remains one of the simplest and most powerful habits for good health. But emerging research is prompting a more nuanced question: not whether we should eat fruit, but how that fruit is grown. Dr Arjun Shah, Consultant Neurologist/Neurophysician, Saifee Hospital, spoke about the risks involved with eating unwashed fruits.

Understanding the Concern: Pesticides and Brain Health

Parkinson's disease is a progressive neurological condition in which dopamine-producing nerve cells in the brain gradually degenerate. This leads to symptoms such as tremors, stiffness, and slowed movement. In India, an estimated 5.8 lakh people are living with the condition, a number expected to rise as the population ages. The causes of Parkinson’s are complex and multifactorial. Genetics, age, and environmental exposures all play a role. Among these, long-term exposure to certain pesticides has drawn increasing scientific attention.

The Chemicals in Question

A number of pesticides have been linked, with varying levels of evidence, to neurological damage and increased Parkinson’s risk in human and animal studies:

  1. Paraquat – Strong evidence; still legal in India
  2. Chlorpyrifos—Moderate evidence of neurological harm; banned in the EU and US, but used in India
  3. Mancozeb / Maneb – Moderate evidence, especially in combination; widely used on fruits like grapes and apples
  4. Endosulfan—Strong evidence; banned in India (2011), but residues persist in soil and food chains
  5. DDT – Moderate evidence; still used in malaria control programmes
  6. Rotenone – Strong evidence in animal models; limited use in India

The concern is not a single meal or occasional exposure. The real issue lies in low-dose, repeated exposure over years, which may quietly accumulate risk. Parkinson’s disease is not caused by one factor alone. Pesticide exposure is just one piece of a much larger puzzle. However, reducing unnecessary exposure is a sensible and low-risk step towards long-term health.

Which Fruits Carry More Residues?

Residue levels often depend on farming practices, but certain patterns are consistently observed. Higher Residue Load (typically thin-skinned or heavily sprayed):

  1. Grapes (table and wine)
  2. Apples (especially imported varieties)
  3. Strawberries
  4. Chillies and capiscum
  5. Pomegranates

Relatively Safer Choices (thick-skinned or locally grown):

  1. Bananas
  2. Papaya
  3. Amla (Indian gooseberry)
  4. Jamun
  5. Guava (local and seasonal)

Practical Steps to Reduce Exposure

For most families, the goal is not perfection but simple, consistent habits that lower risk:

  1. Wash thoroughly under running water for 30–60 seconds — more than just a quick rinse.
  2. Soak before eating in salt water or diluted vinegar for 10–15 minutes.
  3. Peel where possible, especially fruits like apples where residues concentrate on the skin.
  4. Choose local and seasonal produce, which is less likely to have undergone heavy post-harvest treatment.
  5. Opt for organic selectively, especially for high-residue produce like grapes and apples.

The Balanced Perspective

It is important not to lose sight of the bigger picture. Avoiding fruit altogether would do far more harm than good. Fruits are rich in antioxidants and anti-inflammatory compounds that actively support brain health. In fact, locally available options like amla, jamun, and guava are among the most nutrient-dense, neuroprotective foods — affordable, accessible, and deeply rooted in Indian diets. There is no single cause — and no single prevention — for Parkinson’s. But small, informed choices made every day can add up over a lifetime.

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