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Water, Tea, or Milk: Which is the healthiest drink to have?

4 min read

Up to 60% of the human body is water, making it the fundamental beverage for life. But when expanding your options beyond plain tap water, which is the healthiest drink to have? This article explores the nutritional profiles and benefits of popular choices to help you decide.

Quick Summary

This nutritional guide evaluates beverages like water, tea, coffee, and milk, detailing their health benefits and potential drawbacks. Learn which options best support hydration, provide antioxidants, or aid weight management, and which sugary drinks to avoid.

Key Points

  • Water is the Best: The primary and healthiest choice for hydration is plain water, as it is calorie-free and essential for all bodily functions.

  • Tea and Coffee are Healthy: Unsweetened tea (especially green and herbal) and black coffee are rich in antioxidants and can offer various health benefits when consumed in moderation.

  • Milk Offers Nutrients: Low-fat dairy milk and fortified plant-based alternatives like soy or oat milk are excellent sources of calcium, protein, and vitamins, and can be highly hydrating.

  • Moderate Juices and Smoothies: Limit fruit juice due to high sugar content; instead, opt for homemade smoothies with plenty of fiber-rich fruits and vegetables.

  • Avoid Sugary Drinks: Sodas, energy drinks, and sweetened bottled teas and juices provide excess calories and no nutritional value, significantly impacting health.

  • Read Labels: Always check the nutritional information on packaged beverages, as added sugars are often hidden, even in seemingly healthy options.

In This Article

The Uncontested Winner: Plain Water

For most people in most situations, plain water is the undisputed healthiest drink. It is calorie-free, inexpensive, and universally available. Water is essential for countless bodily functions, from lubricating joints and protecting organs to transporting nutrients and regulating body temperature. The vast majority of health professionals agree that staying adequately hydrated primarily with water is key to overall wellness.

To make plain water more appealing without adding sugars, consider these options:

  • Adding slices of lemon, lime, or cucumber.
  • Infusing with fresh mint or berries.
  • Using sparkling water for a fizzy alternative.

The Nuances of Hydration

Interestingly, some research suggests that beverages with a small amount of sugar, fat, or protein may be more hydrating than plain water over a prolonged period. This is because these components slow down the rate at which fluid leaves the stomach, keeping hydration levels up for longer. This is particularly relevant for athletes in intense, long-duration activities, for whom milk or a sports drink might offer better sustained hydration than water alone.

The Healthy Contenders: Tea and Coffee

When consumed without excessive sugar, milk, or cream, both tea and coffee are healthy beverage choices rich in antioxidants.

Benefits of Tea

  • Green Tea: Contains powerful antioxidants like polyphenols and catechins, linked to lower risk of heart disease, cancer, and type 2 diabetes. The level of beneficial compounds can vary depending on brewing method.
  • Herbal Tea: Naturally caffeine-free and offers a range of benefits depending on the herbs used. For example, chamomile tea is known for its calming properties, while ginger tea can help with digestion.

Benefits of Coffee

  • Black Coffee: Provides a dose of caffeine for alertness and concentration, and is associated with a reduced risk of liver disease and type 2 diabetes. It is a zero-calorie option when consumed black.
  • Antioxidants: Like tea, coffee contains a high level of antioxidants, which combat oxidative stress in the body.

Important Considerations for Tea and Coffee

Moderation is key, especially with caffeinated versions. High caffeine intake can cause anxiety, insomnia, and stomach issues in some individuals. For those sensitive to caffeine, decaffeinated or herbal teas are excellent alternatives that still provide antioxidant benefits.

The Nutrient-Dense Option: Milk and Alternatives

Milk, whether dairy or plant-based, can be a valuable part of a healthy diet, offering a source of calcium, protein, and vitamin D.

  • Low-Fat Dairy Milk: Offers essential nutrients without the high saturated fat content of whole milk. It's a great post-workout recovery drink due to its protein and electrolyte content.
  • Soy Milk: A strong plant-based alternative, often fortified with calcium and vitamin D, and is a good source of protein. Some studies suggest soy protein may help lower LDL cholesterol.
  • Oat Milk: Another popular alternative, with some brands offering beneficial beta-glucans, a soluble fiber that can help lower cholesterol.

The Mixed Bag: Juices and Smoothies

While smoothies and juices can be made from nutrient-rich fruits and vegetables, it's easy for their calorie and sugar counts to soar.

  • Juices (100%): A small glass (150ml) can contribute to your daily fruit intake but should be limited due to high sugar content and lack of fiber compared to whole fruit. Vegetable juice is a lower-sugar option.
  • Smoothies (Homemade): A great way to incorporate more fruits and vegetables, retaining fiber that helps promote satiety. Control the ingredients to avoid excess sugar and calories. Store-bought versions are often very high in sugar.

The Drinks to Avoid

Many popular beverages offer little to no nutritional value and are laden with added sugars. These include:

  • Sugary Soft Drinks & Lemonades: High in calories and sugar, linked to weight gain, type 2 diabetes, and other health issues.
  • Energy Drinks: Contain excessive amounts of caffeine and sugar, often with unproven performance-enhancing claims.
  • Sweetened Teas & Bottled Juices: Can contain as much sugar as soda, negating any potential health benefits.
  • Alcohol: Acts as a diuretic and should be consumed in moderation, or not at all.

Comparison of Healthy Drink Options

Drink Calories (per 8oz) Added Sugars Key Benefits Notes
Water 0 None Hydration, zero calories The gold standard
Black Coffee 0-2 None Antioxidants, metabolism boost Moderate caffeine is key
Unsweetened Tea 0-2 None Antioxidants, anti-inflammatory Green, black, herbal options
Skim Milk ~80 None Calcium, protein, electrolytes Great for post-workout
Soy Milk (Unsweetened) ~80 None Protein, fortified nutrients Plant-based, potential cholesterol benefits
Vegetable Juice ~50 None Nutrients, low sugar Homemade is best for low sodium
100% Fruit Juice ~110 None (but high natural sugar) Vitamins, quick energy Limit to small quantities
Kombucha Variable Variable Probiotics, antioxidants Choose low-sugar varieties

Conclusion

In the quest to determine which is the healthiest drink to have, the answer remains refreshingly simple: water. It provides essential, pure hydration without any unnecessary calories or additives. However, for variety and targeted nutritional benefits, unsweetened tea, black coffee, and low-fat milk or fortified alternatives like soy and oat milk are excellent choices. Ultimately, focusing on hydration as your primary goal and treating other healthy beverages as supplements to your diet will lead to the best outcomes. Avoiding sugary drinks entirely is one of the most impactful choices you can make for your long-term health.

How to make smarter drinking choices

  • Prioritize plain water for daily hydration. Carry a reusable bottle to make it easy.
  • Infuse water with fruits or herbs for flavor without sugar.
  • Brew your own tea and coffee at home to control sugar and milk additions.
  • Opt for low-fat or plant-based milks over whole-fat varieties.
  • Limit fruit juice to small, occasional servings and choose 100% unsweetened versions.
  • Skip sodas, energy drinks, and other sugary beverages entirely.
  • Read labels carefully on all bottled drinks, as hidden sugars are common.

Frequently Asked Questions

For immediate hydration, plain water is the fastest option. However, some studies show that milk, with its protein, lactose, and electrolytes, can sustain hydration for longer periods compared to water.

While diet sodas are low in calories, they are not a truly healthy alternative to water. The artificial sweeteners and acids can have other health impacts, and they don't provide the same benefits as water or unsweetened tea.

Most healthy adults can safely consume up to 400mg of caffeine per day, which is about 4 cups of black coffee. However, tolerance varies, and it's best to reduce intake if you experience anxiety, insomnia, or other side effects.

Water is the best drink for weight loss, as it contains zero calories and helps you feel full. Unsweetened black coffee or tea can also help by boosting metabolism, but they should not be a replacement for a balanced diet and exercise.

Green tea is rich in powerful antioxidants called polyphenols, which have been linked to a reduced risk of heart disease, certain cancers, and type 2 diabetes. The effects depend on consistency and brewing methods.

Even 100% fruit juice contains a high concentration of natural sugars and lacks the fiber of whole fruit. It is best to limit consumption to a small glass (around 150ml) and opt for whole fruits instead to get all the nutritional benefits.

For light to moderate exercise, water is sufficient for rehydration. For intense, prolonged exercise, a beverage with electrolytes like coconut water, low-fat milk, or a specially formulated sports drink can help replenish lost fluids and minerals more effectively.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.