💧 Why Staying Hydrated Matters: A Dietitian’s Take on the Power of Water

Discover why staying hydrated is key to better energy, digestion, and overall health — and how simple daily habits can help you meet your water needs.

Christina Collazo-Velaquez MS, RDN, LDN

5/8/20242 min read

clear drinking glass on gray surface
clear drinking glass on gray surface

As a Registered Dietitian, one of the simplest yet most impactful pieces of nutrition advice I give my clients is this: don’t underestimate the power of water.

It’s easy to focus on what we eat — the fruits, veggies, proteins, and whole grains that make up a balanced diet — but what we drink plays a crucial role in our overall health and well-being, too.

Why Water Matters So Much

Our bodies are made up of roughly 60% water, and nearly every process in the body depends on it. From regulating temperature to delivering nutrients and removing waste, water keeps things running smoothly.

When we’re not drinking enough, it can affect energy levels, mood, digestion, and even how well our metabolism functions.

Signs You Might Not Be Drinking Enough

Even mild dehydration can sneak up on you. Some signs include:

  • Fatigue or feeling sluggish

  • Headaches or difficulty concentrating

  • Dry mouth or chapped lips

  • Dark-colored urine

  • Constipation

If you notice any of these, it may be your body’s way of asking for more hydration.

How Much Water Do You Really Need?

There’s no one-size-fits-all number, but a general rule of thumb is about at least 9 cups per day for women and 13 cups for men — this includes fluids from water, beverages, and foods like fruits and vegetables.

However, your needs may increase if you’re:

  • Pregnant or breastfeeding

  • Exercising regularly

  • Spending time outdoors in hot weather

  • Sick or recovering from illness

The easiest way to tell? Check your urine color — it should be pale yellow, not dark.

Practical Tips to Stay Hydrated

  1. Start your day with a glass of water before your morning coffee.

  2. Keep a reusable bottle nearby — at your desk, in your car, or in your diaper bag.

  3. Add natural flavor with slices of lemon, cucumber, mint, or berries.

  4. Set gentle reminders on your phone or smartwatch.

  5. Eat your water — foods like watermelon, cucumber, oranges, and soups can boost hydration, too.

The Bottom Line

Water is essential, not optional. It supports your digestion, energy, skin health, and overall well-being. As simple as it sounds, drinking enough water is one of the most effective habits you can adopt to improve your nutrition and feel your best — especially during busy, demanding days.

So take a sip — your body will thank you for it! 💧