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Dear Partners in Health,

The desire for sweetness is built into our human biology. We are wired to seek it out, to use it as a source of quick energy, and to find comfort in the taste of something that feels rewarding. Over time, that instinct has collided with modern food science, creating a world where sweetness is everywhere—often even without the calories traditionally associated with sugar. For many years, non-sugar sweeteners were offered as the healthier answer: sweetness without weight gain, pleasure without guilt, a simple swap that promised better health. As the data has been gathered, the story has become more nuanced. This week, I want to walk us through what we truly understand about these sweeteners, cane sugar, and long-term metabolic well-being.

What Non-Sugar Sweeteners Actually Are

Non-sugar sweeteners (NSS) include familiar names many Partners in Health recognize—products such as aspartame (Equal), sucralose (Splenda), saccharin (Sweet’N Low), acesulfame potassium often labeled as Ace-K, and newer plant-derived extracts like stevia and monk fruit. They appear in diet sodas, flavored waters, yogurts, protein shakes, chewing gum, and packaged foods marked “sugar-free” or “zero sugar.” Their purpose is straightforward: to replace sugar and reduce calories. Early studies suggested they could help with weight control, and for decades they became woven into the routines of people trying to manage diabetes, avoid weight gain, or simply make healthier choices.

What the Research Shows About Metabolism and Weight

As more long-term data has emerged, the scientific community has reached a more cautious conclusion. Research from many countries shows that while NSS reduce sugar intake in the moment, the long-term metabolic benefits are inconsistent. Many adults who switch to these sweeteners do not see the weight changes they expect. Some even experience increased appetite and compensatory eating later in the day. The body interprets sweetness as a signal that energy is coming, and when those calories never arrive, certain individuals are left hungrier, more snack-prone, or craving additional carbohydrates. This explain why long-term outcomes are not what was originally expected.

Several large observational studies have noted associations between regular use of NSS, especially in drinks, with a higher risk of developing type 2 diabetes, cardiovascular disease, and stroke over time. These studies do not prove that the sweeteners themselves cause illness but highlight patterns that deserve attention. In 2023, the World Health Organization reviewed decades of evidence and advised against using non-sugar sweeteners as a strategy for long-term weight management. The concern wasn’t that NSS cause immediate harm, but that these sweeteners don’t deliver the benefits people expect and may lead to unintended metabolic changes in some individuals.

How Cane Sugar Affects the Body

This leads many Partners in Health to wonder whether returning to cane sugar is the safer answer. Cane sugar has the benefit of being familiar and predictable. It raises blood glucose as expected, prompts an insulin response, and delivers the calories the body anticipates. That predictability, however, does not translate to long-term benefit. Regular cane sugar contributes directly to elevated blood glucose, higher insulin demands, and metabolic overload. Over time, frequent intake promotes fatty liver disease, weight gain around the midsection, and increased inflammation. The association between excessive sugar consumption and chronic disease is one of the most consistently documented findings in nutritional science.

Even modest elevations in daily added sugar increase the risk of type 2 diabetes, hypertension, and cardiovascular disease. Liquid sugar—found in sodas, sweet teas, and flavored beverages—creates some of the fastest and highest glucose spikes, overwhelming the body in a way solid foods do not. For many people, shifting away from added sugar is a foundational step toward improving metabolic resilience.

Are “Natural” Sweeteners a Better Choice?

Many Partners in Health gravitate toward stevia or monk fruit because they sound more natural, and their metabolic profiles are indeed gentler than traditional sugar. It is important, however, to understand what these products really are. The versions sold in packets or added to beverages are not the raw plant leaf. They are highly purified extracts, such as steviol glycosides, processed to remove bitterness, stabilize sweetness, and improve taste. They are often blended with other ingredients like erythritol or dextrose to create a more familiar sweetness profile.

Regulatory agencies, including the U.S. Food and Drug Administration, consider these purified extracts safe when used within established limits. They do not raise blood glucose, and they are less likely to drive cravings compared to some older sweeteners. Still, they are best viewed as tools for transition rather than long-term fixtures. Their plant origin does not make them entirely “whole,” but they offer a gentler metabolic footprint while someone is reducing their reliance on traditional sugar.

Diet Sodas and “Zero Sugar” Drinks

Diet sodas and zero sugar drinks are perhaps the most common place NSS show up. Many colas contain blends of aspartame with Ace-K; others use sucralose paired with Ace-K. Newer brands use stevia or monk fruit to soften the taste and create a product that tastes closer to cane sugar. These beverages remove a substantial sugar load and can be a meaningful step for someone who typically drinks several regular sodas each day.

Diet sodas and zero-sugar drinks are perhaps the most common place non-sugar sweeteners appear. Many colas contain blends of aspartame with Ace-K, while others use sucralose paired with Ace-K. Newer brands use stevia or monk fruit to soften flavor and create a product that tastes closer to cane sugar. These beverages remove a substantial sugar load and can be a meaningful step for someone who typically drinks several regular sodas each day.

Replacing sugar with diet beverages does not, by itself, eliminate all health concerns. The acidity can still erode tooth enamel, and sweetness—whether from sugar or non-sugar sweeteners—may reinforce cravings. Diet drinks are often most helpful as a stepping-stone rather than a long-term substitute, as we try to shift toward less sweet drinks.

How to Navigate Food Labels with More Ease

Understanding sweeteners becomes simpler when we rely on what labels actually tell us. In the U.S., manufacturers must list added sugars in grams on the Nutrition Facts panel. This number is reliable and gives a clear picture of how much sugar has been included. Non-sugar sweeteners, on the other hand, must appear in the ingredient list by name (aspartame, sucralose, Ace-K, stevia extract, monk fruit extract) but the amount used does not need to be listed.

For practical purposes, reading labels with two quick steps can be helpful:

• Look at added sugars first to understand the sugar content.

• Then scan the ingredient list to see whether NSS are used to create sweetness.

This approach keeps things simple while still empowering you to make intentional decisions.

A Healthier Relationship with Sweetness

There is no perfect sweetener. The goal is not to replace one form of sweetness with another indefinitely. The most supportive long-term strategy is to gradually reduce how sweet our daily foods and drinks need to be. Taste preferences adapt quickly. Cutting the amount of sweetener in coffee or tea by a quarter each week, shifting to unsweetened beverages more often, and choosing whole foods with naturally mild flavors helps retrain the palate in a gentle and sustainable way.

For those who want some sweetness while adjusting, a few options tend to support metabolic health more effectively:

• Stevia-based extracts without heavy fillers

• Monk fruit extract

• Allulose, a low-calorie sweetener that does not spike blood glucose

These are not meant to replace sugar permanently but rather to ease the transition as we gradually build a healthier baseline.

Closing Thought

Sweetness has always been part of the human experience, but modern life has amplified it far beyond what our biology was built to handle. Our paths should be to focus on less added sugar, a decreased dependence on intense sweetness, and a gradual return to foods that nourish. As the science evolves, one message remains steady: reducing sweetness in all forms supports metabolic health, stabilizes energy, and protects long-term vitality.

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This is true whether you are lifting weights, walking your neighborhood, practicing Pilates, doing Tai Chi, or easing into gentle Qigong. Different styles, same biology. Breath regulates pressure inside your chest and abdomen. That pressure moves blood, lymph, and energy supporting every major system in your body. When your breath is calm and coordinated with your movement, everything in your body begins to work together instead of against itself.

This letter looks at the benefits you can expect when you start to move with your breath on purpose.

Why Breath Matters for Muscle Strength

Muscles need oxygen and stable internal pressure to work well. When you inhale, your diaphragm contracts and pulls downward. This creates space in the lungs and draws oxygen in. When you exhale, the diaphragm rises again. This rhythmic motion does more than ventilate your lungs. It acts like a built in pump for the entire torso.

When you pair your breath with your movement, you stabilize your spine, improve coordination between muscle groups, and reduce unnecessary tension. For example, many strength exercises work better when you exhale on effort and inhale to prepare. The exhale engages the deep abdominal muscles and supports the spine, which allows your arms and legs to generate force more safely.

Studies show that controlled exhaling during muscular effort supports better power output, steadier core stability, and improved endurance. When you hold your breath by accident, pressure spikes in the chest and your blood pressure surges. That can leave you feeling lightheaded and fatigued. Breath led movement avoids this problem and helps your body stay in a safe pressure range while still generating strength.

Circulation and Fluid Balance

Your breath influences more than oxygen. It affects how fluids move through the entire body.

When the diaphragm moves rhythmically, it acts like a pump on the inferior vena cava, which is the major blood vessel returning blood to the heart. With each inhale, the pressure in your chest drops. This encourages venous blood to flow more easily back toward the heart. A smooth exhale maintains that flow. When your breath is timed with your steps or movements, this venous return becomes more efficient.

The diaphragm also presses against the abdominal organs as it moves. This supports lymphatic flow. Unlike blood, lymph does not have a heart to pump it. It depends on muscle movement and pressure changes to circulate. Slow, coordinated breathing enhances this process. This is a major reason people feel less swollen and more energized when they walk or practice mindful movement with attention to breath.

If you struggle with lower leg swelling, fatigue, or sluggish circulation, aligning breath with movement can help your body recirculate fluids more effectively.

Breath and Stress Recovery

Breathing is the doorway to your nervous system. When your breath becomes slow and steady, your vagus nerve sends signals to calm your heart rate, lower stress hormones, and relax your muscles. This shift allows your body to enter a state where healing and recovery can occur.

During exercise, your body naturally activates the sympathetic nervous system, which is the alert response that raises heart rate and blood pressure. This is normal. But if your breath becomes tight or shallow, the stress response can linger long after you finish your workout.

Breath led exercise helps shape a healthier curve. As you move, your breath guides your nervous system back toward balance. This means:

• less post workout tension

• faster recovery

• fewer stress related aches

• clearer mental focus afterward

This is one reason Tai Chi, Qigong, and Pilates are clinically shown to reduce anxiety and improve sleep. The slow, breath guided patterns teach the nervous system to settle even while the body is active.

How to Start Breathing With Your Movement

You do not need special training. Try this with your next walk or workout.

Step 1: Start by noticing your breath.
Let your shoulders relax. Allow your abdomen to soften.

Step 2: Choose an easy rhythm.
For walking, inhale for two steps and exhale for two steps.
For strength exercises, inhale to prepare and exhale on effort.
For stretching, inhale to lengthen and exhale to release.

Step 3: Slow your exhale slightly.
A longer exhale helps the nervous system settle.
It should not feel forced. Gentle is enough.

Step 4: Stay curious. Not critical.
There is no perfect breath. Just notice how your body feels when you move with more awareness.

What You Will Notice Over Time

Most readers describe the same changes:

• Muscles feel less tight during and after exercise

• Steadier balance and coordination

• Reduced swelling in the legs

• More energy during the day

• Calmer mood after activity

• A sense of moving “with” the body instead of fighting against it

Your breath shapes your physiology all day long. When you bring it into your movement, even in small ways, your body becomes more efficient at every level. Strength, circulation, stress recovery, and overall well being all improve.

This is the foundation beneath many ancient practices, but it is equally true for modern exercise. It is simply biology working in your favor.

“My son told me the other day that he’s doing intermittent fasting.
The irony? I’ve spent 30 years just trying to get him to eat breakfast.”

It’s no secret that fasting has become the badge of being “health-conscious.”
But what if the people who fast the most, like young, lean, active adults, are actually the least likely to benefit?

As a nurse practitioner and a mother of four naturally thin kids who have never had big appetites, I have mixed feelings about this trend. I spent years encouraging small meals to help my kids maintain their weight, and now I see a culture that encourages skipping meals.
The way we eat in our twenties and thirties affects our bones, muscles, and energy for the rest of our lives.

Why Fasting Took Off

Fasting isn’t new; it’s been part of religious and medical practice for centuries.
What is new is the idea that fasting is a universal path to better health. Research shows it can help people who are overweight or have metabolic issues by improving insulin sensitivity, lowering inflammation, and sometimes making calorie control easier. ¹
But most studies do not include healthy, normal-weight young adults. This matters because their bodies react differently.

When Fasting Works — and When It Doesn’t

Fasting can help when:

• Weight or insulin levels are high

• Late-night snacking or grazing is constant

• Structure is missing and overeating is common

However, for lean or active people, skipping meals often has the opposite effect.
Low fuel means low energy, slower recovery, and sometimes muscle loss. ²
Women and young adults may experience hormonal problems, such as irregular cycles, fatigue, and mood swings.
If you already tend to forget to eat, fasting can make under-nutrition even worse.

Bone, Muscle, and the Myth of “Thin = Healthy”

We often focus on body fat, but we do not talk enough about lean mass.
Muscle protects our metabolism, and strong bones help us stay resilient as we age.
Studies show that higher muscle mass — not lower body weight — is linked with longer lifespan and better health outcomes. ³
Low BMI in early adulthood is associated with lower peak bone mass and higher fracture risk later in life. ⁴
I was diagnosed with osteoporosis in my 50s, and I have learned that you cannot rebuild bone that you never built.

Fasting, Fatigue, and Focus

For some, fasting creates clarity.
For others, fasting can cause stress hormones to rise and lead to brain fog.
If you feel anxious, dizzy, or go from feeling energetic to very tired, your body is not failing. It is telling you that you need to eat.
Your health is not measured by how long you can ignore hunger.

Is This Trend Masking Eating Disorders?

Many clinicians are increasingly worried that intermittent fasting can turn into a socially accepted eating disorder.
When “fasting” disguises food avoidance, it stops being a wellness tool and becomes a health risk.
This is especially risky for teens, college students, and young professionals who are already dealing with stress, perfectionism, and social media pressure.

Finding Balance

Fasting is just one tool, not something everyone needs to do.
If you are overweight or have insulin resistance, time-restricted eating may help.
If you are lean, low on energy, or often tired, eating regular meals is the real answer. Am I actually building strength, or am I just eating less often?

• Is this habit really helping my health, or is it hiding a deeper issue?

If you are not sure, focus on eating well, staying active, and getting enough rest before you try fasting.

Ask yourself:

• Am I getting enough calories and protein to match my activity?

• Do I sleep well and recover easily?

• Am I actually building strength, or am I just eating less often?

• Is this habit really helping my health, or is it hiding a deeper issue?

If you are not sure, focus on eating well, staying active, and getting enough rest before you try fasting.

Fasting or Fueling? A Quick Guide

When Fasting Makes Sense When Fueling is Better

Overweight or insulin resistance Naturally lean / low appetite

Nighttime overeating Strength or athletic training

Need structure for calorie control Teens / young adults building bone

Medical guidance for metabolic issue Fatigue / brain fog / low energy

**Listen to your body — not the hype**

Practical Takeaway

If fasting leaves you energized, focused, and strong, it may fit you.
If it leaves you tired, distracted, or weaker, it’s time to eat.
Your body tells the truth faster than any trend.

References

1. Harvard Health Publishing, “Intermittent fasting: Benefits and risks,” 2022.

2. Jefferson Health, “Intermittent Fasting Can Lead to Muscle Loss,” 2023.

3. Frontiers in Nutrition, 2021 — “Muscle Mass and Metabolic Health.”

4. JAMA, “Adolescent Body Mass Index, Weight Trajectories to Adulthood, and Osteoporosis Risk,” 2025

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Energy isn’t just for the naturally energetic or the young. In medicine, energy is about biology: how our cells make and use fuel, how our hormones stay balanced, and how our bodies recover when we rest. But energy is also deeply human. It’s the steadiness, clarity, and sense of purpose that make life feel meaningful.

Yet modern life stacks the odds against us. Over-booked schedules, glowing screens, and a barrage of notifications knock us out of balance. We burn the midnight oil, then puzzle over our exhaustion. The simplest remedy—sleep—slips further from reach. Late-night emails, endless streaming, and the blue glow of our phones fool our brains into believing it’s still daytime. The result? We wake up foggy, short-tempered, and vulnerable to illness.

Deep, restorative sleep is the secret ingredient for balance, resilience, and that unmistakable glow of vitality.

🔬 The Biology of Vitality

At the cellular level, your body is an energy factory. Tiny power plants called mitochondria convert nutrients and oxygen into ATP, the energy currency that keeps your muscles moving and your brain working. As we age, those power plants become a little less efficient. It’s as inevitable as getting gray hair or losing track of your reading glasses.

When you add inflammation, oxidative stress, and the usual wear and tear of life, your energy balance shifts. Hormones play a role as well. Most people have heard of cortisol, but there are actually many stress hormones. When these stay high due to factors like traffic, bills, politics, and constant news, they drain the very systems meant to protect us. For simplicity, let’s call them all “cortisol,” since we already have plenty to keep track of.

Have you noticed sleep keeps coming up in every discussion? That’s because during deep sleep, your brain files memories, your hormones reset, and your cells handle repairs you didn’t even know you needed. Yet our busy lives get in the way. The glow of a screen, that late cup of coffee, or the endless push to stay productive all chip away at our most basic biological need. Sleep

🧠 Brain, Food, and the Gut—The Energy Triad

Energy isn’t just burned; it’s also absorbed, processed, and directed. One of the biggest players in this process is the gut, sometimes called the “second brain.” Inside the gut lives a large community of microbes that affect metabolism, inflammation, and even mood. About 90% of serotonin, the “feel-good” neurotransmitter, is made in the gut, not the brain.

So yes, we really are what we eat, or more accurately, what we absorb. A diet rich in variety, color, and real food nourishes both the body and the brain. It’s still important not to get caught up in every new diet trend you see online.

Fasting? Maybe helpful for some, miserable for others.
All-organic everything? Lovely if you can afford it, but it won’t magically erase decades of sleep deprivation or stress.
The point isn’t perfection; it’s balance.

Your brain, gut, and nervous system are in constant conversation. When one gets overwhelmed, the others scramble to pick up the slack, and that’s when fatigue creeps in. True health is a dance between nourishment, rest, and calm. When we pay attention to all three, the message is: slow down, eat real food, and make sleep a priority.

🧬 What Keeps US Aging Well?

There are no hidden secrets here, just familiar habits we know well but still ignore:

• Movement: Regular physical activity keeps mitochondria efficient and blood flowing. Even walking counts; your body doesn’t care if it’s a gym or a grocery store aisle.

• Nutrition: Balanced meals packed with lean protein, omega-3s, and antioxidants fuel your energy production. Coffee is delightful, but it does not qualify as a food group.

• Sleep: Guard it like a treasure. No supplement or superfood smoothie can substitute for eight hours of real sleep.

• Connection: Those with deep relationships live longer, heal quicker, and have more energy.

• Purpose: Waking up with a reason gives you as much fuel as anything you eat.

And yes, science matters. It’s easy to forget that, for most of history, people lived only into their 30s. This wasn’t because they ate organic kale or drank from clean rivers. They lacked antibiotics, vaccines, sanitation, and reliable healthcare.

In the 1840s, something remarkable happened: public health caught up with nature. Clean water, sewers, vaccines, and basic hygiene doubled life expectancy in less than two centuries. We owe our longer lives not to organic living but to the wonders of applied science.

It’s a good reminder that natural does not always mean better. Snake venom and arsenic are natural, too. The goal is not to give up science for nostalgia, but to use both past wisdom and modern progress to live longer and better.

🌿 Final Thought

The more I study physiology and traditional healing philosophies, the more I see that energy isn’t a prize but a foundation we build over time. There are no supplements or meditation to make up for poor sleep, chronic stress, and isolation.

Aging gracefully isn’t about endless energy, but about a steady current—the kind that fuels joy, sharpens focus, and brings meaning to each day.

That’s what The Health Letter is all about: restoring clarity and trust to health discussions, one down-to-earth conversation at a time. While the internet tempts us with quick fixes, science gently insists that common sense never goes out of style.

💌 If this resonated with you, subscribe to The Health Letter for more honest, science-based insights on aging, energy, and living well without the hype

I’m Melinda Miller, NP, a nurse practitioner and the creator of The Health Letter.

My mission is to bring trustworthy, common-sense health information back to everyday life. I am not sponsored by anyone, and if that ever changes, I will always be transparent with you.

After decades of caring for patients in their homes, I’ve learned that good health is shaped less by quick fixes and more by the decisions we make day after day. Health is found in how we move, nourish our bodies, manage stress, and stay connected with others. Those everyday choices are what keep us strong, capable, and well for the long run.

What You Will Find Here

Each issue offers clear guidance without the hype, so you can feel confident about the choices that support your health today and your independence later.

You can expect:

• Guidance that supports long-term strength, energy, and disease prevention
• Practical ways to evaluate wellness trends and know what’s actually helpful
• Straightforward explanations on cancer risk, medications, vaccines, and screenings
• Support for caregivers who are caring for others while also caring for themselves

This is not personal medical advice, but it is grounded insight and real-world wisdom you can trust.

Why I Started This Letter

Health information online has become crowded and sometimes misleading. AI can generate confident answers that still miss what real people actually need. And it’s easy to end up more confused than when you started.

I want to help you cut through the noise.

My goal is to make each edition feel like a conversation with a nurse who listens first and understands the balance between science, spirit, and real life.

Join the Conversation

Whether you are building strong habits early in adulthood, supporting a loved one through illness, or navigating the changes that come with age… you belong here.

If you’d like these insights delivered to your inbox, subscribe below. Each letter is written with care and encouragement, to help you stay informed today and healthier tomorrow.

Thank you for joining me at the start of this journey. I’m truly glad you’re here.

Choose health,
Melinda Miller, NP
Founder, The Health Letter

www.TheHealthLetter.com