You've probably asked yourself too if that old bottle of water in your pantry is still good to drink? Water is life, yet there are remaining questions about the shelf life. Whether you are stockpiling for emergencies or wondering if that bottled water left in a heated car is safe to drink, understanding if and how water "expires" is essential. This article goes into the science behind water storage and its potential risks and practical tips to ensure your water will remain safe and consumable.

Water itself does not spoil or degrade. Chemically, pure water (H₂O) remains unchanged indefinitely. However, there are issues that arise due to the containers in which it is stored and the environmental conditions surrounding the storage.

In the United States, most bottled water has an expiration date. This labeling is often misunderstood as being an indication of the water's safety, but it mainly has to do with quality. The U.S. Food and Drug Administration (FDA) confirms that commercially sealed bottled water is safe to drink indefinitely if stored properly. Over time, though, the taste, smell, and even the appearance of water may change due to interactions with its packaging.

Role of Packaging in Water Safety

Plastic Bottles and Chemical Leaching

Bottled water is mostly packed in polyethylene terephthalate, PET plastic. Even though it is light in weight, resistant, and recyclable, this material is limited in other aspects. It leaches chemicals in trace amounts in the water if heated or placed under direct sunlight. For instance, do not leave your bottled water in the hot car for an extended period.

The next is bisphenol A or BPA. This chemical has been used to soften some plastics and is known for its hormone disruption. Many producers have shifted toward BPA-free materials, but older bottles and improper storage still pose risks. Bottles carrying recycling code #7 may be BPA-contaminated. There are also concerns over microplastics and long-term storage.

Microplastics and Long-Term Storage

Over time, the plastic in the bottle may leach into the water, causing some to question health risks. In 2019, one article published in the International Journal of Environmental Research and Public Health noted that these particles exist but are usually not at high enough concentrations to pose a problem if the water is properly stored.

Also Read: What Happens When You Drink Too Much Water?

How Long Can Water Be Stored Safely?

Bottled Water

Unopened bottled water, kept in a cool, dark place, remains safe to drink for years. But manufacturers often advise that it should be consumed within two years of its manufacture date for best quality. After this period, it may start showing off-flavors or odors due to contact with the plastic.

Tap Water

Tap water, under the Environmental Protection Agency (EPA), undergoes strict standards for safety. It can be kept in pure, BPA-free bottles up to six months. Afterward, it loses its fresh flavor or becomes dirty if not properly sealed.

Rainwater

Don't drink rainwater unless treated first. It usually contains contaminants that should not reach the human stomach. It should be used to water plants if not filtered and sterilized first.

Signs That Water Has Gone Bad

Water itself doesn't go bad, but extrinsic factors make it unsafe. Always discard water that has:

An off smell: An earthy, metallic smell indicates contamination.

Coloration: Greenish or bluish coloration signifies microbial growth or rust.

Unpleasant taste: A metallic or stale taste is a hallmark of degradation.

Froth or particles: Indicate dirt, germs, or other impurities.

How to Store Water Safely?

Avoid Heat and Sunlight

Store water in a cool, dark place and out of direct sunlight. Heat breaks down the plastic, allowing chemicals to leach out more easily.

Choose the Right Containers

For long-term storage, select BPA-free or food-grade plastic containers. The best alternatives are stainless steel and glass containers, which avoid all the risks that plastic poses.

Hygiene Maintained

Wash and sanitize the container before refilling. Always seal the lids so that no bacteria get inside.

Rotate Your Stock

Use a first-in, first-out rotation system with stockpiled water. This will mean that you will use the oldest water first to keep your water supply fresh.

Is It Safe to Drink Water Past Its Expiration Date?

The expiration date on bottled water is a mark of its quality, not safety. Although the water is safe to drink past this date, it is sensible to check it for any signs of spoilage as mentioned above. Tap water that has been stored for longer periods should be checked for clarity and odor before consumption.

Plastic bottles, although convenient, degrade the environment. Only a few percent of PET bottles are recycled, while the rest remain in landfills or oceans. Choose reusable containers and tap water whenever possible to minimize plastic waste and environmental damage.

Water is one of the most precious resources in this world, yet it can be safe only if it is kept appropriately. People may tell you that water does not expire, but the fact is that packaging materials, exposure to the environment, and storage conditions may affect the quality of the water. Proper storage techniques, opting for BPA-free containers, ensure that water remains fresh, safe, and ready for consumption at any time.

While the World Health Organization recommends 5g or a tablespoon of salt every day, Indians consume more than double, increasing their risk of having a fatal stroke exponentially.

According to EatRightIndia, Indians consume about 11g of salt each day through meals which can significantly increase their risk of high blood pressure, strokes and hypertension.

Hypertension causes over 1.6 million deaths annually, accounting for nearly 18 percent of all fatalities and heavily contributes to deaths caused by heart disease, stroke and kidney disease.

What Is Excessive Salt Dangerous?

The most important side effect of consuming excessive salt intake is high blood pressure. Salt causes the body to retain water, increasing the volume of blood in your vessels and leading to elevated pressure levels. If your blood pressure consistently measures over 140/90 mmHg, it's time to evaluate your salt consumption.

Over time, this can rapidly raise your risk for heart disease, stroke while also potentially contributing to stomach cancer and weakened bones. Additionally, high blood pressure damages kidneys and excess sodium can lead to kidney stones or disease.

Apart from a 5gm recommendation for adults, NHS suggests that children between seven to 11 years of age should not eat more than 5g of salt while those between four to six years of age should eat less than 3g of salt every day to maintain heart health.

How Can You Reduce Your Salt Consumption?

Both excessive and insufficient salt intake have been linked to adverse outcomes. Achieving the right balance is critical, and the best approach is to minimize processed food consumption rather than relying solely on the salt shaker.

Common items such as pickles, paapads, chutneys, salads and buttermilk significantly contribute to daily salt consumption. Hidden salts in packaged goods like biscuits, sauces, condiments and snacks also can increase your salt intake.

To cut down on your salt intake, experts recommend:

• Not adding salt in rice and dough for chapati, poori and paratha.
• Not sprinkling salt on salad, cut fruits, cooked vegetables or curd.
• Gradually reducing the salt usage while cooking from lesser to least.
• Limit food accompaniments like salted butter, salty spice mixes (chaat masala, jal jeera masala etc.), chutneys, pickles, ketchups, sauces and dressings as they contain excess salt.
• Baking soda, baking powder, and monosodium glutamate (MSG) also contains high sodium and should be avoided in your daily cooking.
• Not keeping salt on the table.
• Buying tinned vegetables, pulses or fish in water instead of brine.
• Being aware that some dissolvable tablets, such as painkillers, vitamins or prescription medicines, may be high in salt.

Tagatose, a natural sugar with a third of the calories of table sugar, may be the up-and-coming safe alternative to unhealthy added sugars, scientists say.

Researchers from Tufts University, Massachusetts in partnership with biotechnology companies Manus Bio (US) and Kcat Enzymatic (India), claim that tagatose, found in only small amounts in some dairy products and fruits, is a healthier option than regular sugar and sweeteners.

The experts also claim it this rare natural sugar also does not cause insulin spikes, making it safe for consumption for both Type 1 and 2 diabetes patients. Tagatose has also been previously recognized as safe for consumption by the US Food and Drug Administration (FDA) and the World Health Organization (WHO).

Certain studies have also found tagatose to be 'tooth friendly', as it can limit the growth of harmful microbes in the dental cavity and prevent tooth decay as well as cavities.

How Is Better Than Other Artificial Sweeteners?

Due to being a natural sugar with similar taste and bulk to sugar but fewer calories, minimal blood sugar impact, prebiotic benefits and heat-stable for baking, tagatose is known to better than artificial sweeteners.

Moreover, it also lacks the bitter aftertaste common with some artificial sweeteners such as saccharin and stevia and tastes 92 percent as sweet and 60 percent less calories than common sugar.

With low calories and low absorption, tagatose is an attractive bulk sweetener, meaning it can not only can replace sugar for sweetness but can also provide a similar bulk texture in cooking that comes with adding the sugar in some quantity, something that high intensity sweetener substitutes are unable to do due to their composition.

Can Diabetes Patients Consume It?

Yes, tagatose can be eaten by insulin-resistant people as it's only partially absorbed in the small intestine; much of it being fermented by gut bacteria in the colon. Because of this, its impact on blood glucose and insulin is much less than that of conventional sugar.

Clinical studies show very low increases in plasma glucose or insulin after ingestion of tagatose. However, in the gut, the rare sugar is metabolized in a similar way to the fruit sugar, fructose, meaning those with fructose intolerances may want to steer clear

Where Can I Buy It?

While tagatose is far more beneficials than other commercially-available sugars, it remains unavailable due to limited production. "There are established processes to produce tagatose, but they are inefficient and expensive," explains biological engineer Nik Nair from Tufts.

But it can still be found in milk and other dairy products when lactose is broken down by heat or enzymes, such as yogurt, cheese and kefir. Along with this, fruits such as apples, pineapples and oranges also contain trace levels of tagatose as part of their natural carbohydrate spectrum.

Cancer cells do use oxygen to metabolize sugar(glucose) to generate energy for their sustenance. They use anaerobic respiration i.e. glycolysis. Cancer still remains a prominent cause of mortality across the globe. Despite recent breakthroughs in the treatment strategies, the understanding of how cancer begins inside a cell remains elusive.

Traditional treatment pathways such as chemotherapy, radiation therapy and even surgery, although inevitable, are still falling short in effectively eradicating certain malignancies. In many cases, they aren’t fully able to restrict the disease progression, causing systemic toxicity which further can have its own complications.

However, we find ourselves in an interesting place where growing research is making us look at cancer in newer ways. For the first time, cancer is being considered as having metabolic irregularities as a major cause in addition to genetic aberrations. This might change the way we treat the disease in the coming days.

Cancer cells breathe differently

Interestingly, new age theories are observing some commonality among all cancers, the affected cells generate energy differently.

Cancer cells are not using oxygen to generate energy. Instead, they are fermenting glucose and glutamine (an amino acid found in the body) to fuel their growth. This impaired cellular respiration might be at the core of disease formation.

Dr Thomas Seyfried (a leading proponent of the metabolic theory of cancer) has gone ahead in saying that infected mitochondria (powerhouse of the cell) is the propeller of the disease and not the nucleus (where genetic material is stored inside a cell). It might be the kitchen of the cells that is calling the shots.

Starving cancer cells could be a way forward

Healthy human cells can use liver-generated ketone bodies for energy production in the absence of glucose. However, cancer cells are incapable of fermenting ketone bodies.

If tumors thrive on glucose and glutamine, removing these fermentable fuels can enable starvation of cancer cells. They can easily shrink or even disappear. On the flip side, chronically elevated blood glucose can contribute to the progression of the disease.

Growing research propagates the induction of a ‘calorie-restricted’ diet for both prevention and management of cancer.

It is being observed that therapeutic ketosis using carbohydrate-restricted diets alongside traditional treatments (chemotherapy, surgery et al) is showing clinically positive results in cancer patients. In my own office, I have seen similar experiences where my patients benefitted from a holistic approach to cancer treatment which included tailored low glycemic diets.

The standard treatment in form of chemotherapy, radiation and surgery are cytotoxic methodology; dietary interventions and Indian traditional medicine break the resistance of cancer cells and make them amenable to cytotoxic treatment simultaneously decreasing the adverse effects of cytotoxic treatment.

While aggressive keto diets can be a late-stage intervention, maintaining a moderately calorie-restricted diet can be adopted as a preventive measure against the rise of cancer.

Finding a middle path

Cancer researchers might have theoretical disagreements but most of them agree on the fact that there are multiple factors involved in conversion of a normal cell into a tumour. Hence, having a holistic approach to the treatment is the way forward.

While standard treatments like chemotherapy, radiation therapy and surgery are not replaceable, the systemic toxicity caused by these aggressive treatments is reduced as well as response to them is augmented using holistic approach with dietary intervention and Indian traditional medicine, under the supervision of skilled professionals.

Note: Conventional treatments like chemotherapy, radiation therapy and surgery are not replaceable, and must be continued as per the instruction of the supervising practitioner