The Optimal Wellness Plan
A free book from a PhD researcher with 25 years in aging science — five things you can start doing this week to feel stronger, think more clearly, and protect your health for the long run.
No spam. No sales pitch. Just the science, simplified.
Dr. Stephen Anton
PhD
University of Florida
Professor
250+
Peer-Reviewed Publications
25 Years
Researching Aging, Metabolism & Longevity
If You're Over 40, You've Probably Noticed Something Shifting.
The energy that used to come easily takes more effort now. The weight that used to move doesn't budge the same way. You sleep and still wake up tired. Your thinking feels a little slower than it used to.
Most people assume this is just aging. They accept it, manage around it, and quietly lower their expectations for what their body can do.
I've spent 25 years studying what actually drives these changes — and the research tells a different story.
Most of what we call normal aging isn't inevitable. It's the result of a handful of specific habits — and it can be changed.
Popular Blogs
16/8 Intermittent Fasting: Tips from an Industry Expert
The 16:8 intermittent fasting plan, also known as the 16:8 diet or time-restricted feeding, is a popular fasting method that involves restricting your daily eating window to a specific time-period and fasting for the remaining hours of the day.
Table of Contents
16/8 Intermittent Fasting Plan
5 Reasons for the Increased Popularity of 16/8 Intermittent Fasting
Points to Consider While Practicing 16/8 Fasting
Muscle Growth and 16/8 Intermittent Fasting
16/8 Fasting and Your Circadian Rhythm
16/8 Intermittent Fasting Plan
The “16:8” refers to the fasting and eating windows within a 24-hour cycle. Here’s how the 16/8 intermittent fasting plan typically works:
Fasting Window
During the fasting period, you abstain from consuming any calories, allowing only calorie-free fluids such as water, unsweetened tea, or black coffee. Some variations of this plan may allow for minimal-calorie intake during the fasting window, such as a small amount of cream in your coffee.
Eating Window
You designate a specific period of approximately 8 hours during which you consume all your daily calories and meals. This window is the time when you can eat your meals and snacks.
5 Reasons for the Increased Popularity of 16/8 Intermittent Fasting
The reason this approach has become so popular is that it’s highly sustainable and easy to follow once the body has adapted to this way of eating.
The 16:8 intermittent fasting plan gained popularity through a combination of factors, including scientific research, anecdotal evidence, and increased interest in alternative approaches to weight loss and health improvement. Here are a few key factors that contributed to its rise in popularity:
1. Research on Intermittent Fasting
Over the decade, a growing number of studies have explored the benefits of intermittent fasting approaches, with the 16:8 plan being most frequently tested. Findings from research to date has suggested that this approach has a number of potential benefits including fat loss, muscle preservation, enhanced energy, and greater mental clarity.
2. Simplicity and Flexibility
The 16:8 plan offers a simple and flexible approach to fasting. With an 8-hour eating window and a 16-hour fasting window, it can be easily integrated into daily routines. Unlike more extreme fasting methods, such as prolonged multi-day fasting, the 16:8 plan allows for regular daily meals while still providing a fasting period. This simplicity and flexibility made it appealing to individuals looking for a sustainable fasting regimen.
3. Aligning with Circadian Rhythms
The 16:8 plan is designed to align with our natural circadian rhythms, which regulate our sleep-wake cycle and metabolic processes. It takes advantage of the overnight fast that occurs during sleep and extends it to create a longer fasting period.
4. Weight Loss and Wellness Communities
The rise of online communities, social media platforms, and wellness influencers played a significant role in popularizing the 16:8 plan. As individuals shared their personal experiences and success stories with intermittent fasting, it gained traction within weight loss and wellness communities. The accessibility of information, success stories, and tips shared online helped spread awareness and generate interest in the 16:8 plan.
5. Promotion by Health and Fitness Experts
Health and fitness experts, including doctors, nutritionists, and fitness influencers, have also played a role in promoting the 16:8 plan. These experts highlighted the potential benefits of intermittent fasting, including the 16:8 approach, through books, articles, podcasts, and media appearances. Their endorsement and expertise helped increase awareness and credibility around the plan.
Points to Consider While Practicing 16/8 Fasting
It’s important to note that while the 16:8 plan has gained popularity, individual experiences and results will vary. There are many factors that can influence your success on this program but probably the most important one is “what” you eat during the eating period. The importance of proper fuel consumption cannot be overemphasized.
Here are some key points to consider regarding the 16/8 intermittent fasting plan:
Flexibility
The 16/8 plan offers flexibility in choosing the eating window that suits your schedule and preferences. Common approaches include starting the fast in the evening after dinner and skipping breakfast the next morning or delaying the first meal of the day until later in the morning.
Benefits
Potential benefits of the 16:8 IF plan include fat loss, improved insulin sensitivity, enhanced cellular repair processes, and better metabolic health and brain function.
Balanced Nutrition
While the 16:8 plan focuses on when you eat, it’s still essential to prioritize a balanced and nutritious diet during your eating window. Pay attention to portion sizes, choose whole foods, include a variety of fruits and vegetables, incorporate lean proteins and healthy fats.
Hydration
Staying hydrated is crucial during fasting periods. Drink plenty of water throughout the day to support your overall well-being.
Personalization
It’s important to consider your individual health status, dietary needs, and any underlying medical conditions. If you have concerns or specific health conditions, regimen.
Remember, consistency and sustainability are key factors in any dietary approach. It’s essential to find a pattern that works well with your lifestyle and promotes a healthy relationship with food.
Muscle Growth and 16/8 Intermittent Fasting
The 16:8 intermittent fasting plan may not be considered the optimal approach for maximizing muscle growth compared to other dietary strategies.
Muscle growth requires an adequate intake of nutrients, particularly protein, to provide the necessary building blocks for muscle synthesis and repair.
In the 16:8 plan, there is a limited eating window of 8 hours, which may make it challenging for some individuals to consume enough calories and nutrients, including protein, within that time frame.
This could potentially hinder muscle growth if nutrient intake is not properly managed.
However, as described in the blog “Intermittent Fasting for Bulking” this is certainly possible and I believe that fasting and bulking (muscle growth) can be combined successfully.
Maximizing Muscle Growth While Fasting
Compared to standard bulking approaches, intermittent fasting and bulking is healthier, more effective, and produces less body fat gain. You will also experience healthier cells, improved muscle maintenance, higher quality muscle growth, and increased human growth hormone.
To maximize your results, remember to focus on consuming calories during your natural anabolic windows. For most people, that means when you first break your fast (typically in the late morning), and right after your evening workout.
16/8 Fasting and Your Circadian Rhythm
The 16:8 intermittent fasting plan can be designed to align with circadian rhythms, which are the natural biological rhythms that regulate various physiological processes in the body, including metabolism and sleep-wake cycles.
Our circadian rhythms are influenced by external cues, such as light and darkness, and play a role in regulating metabolism. The timing of food intake can impact the synchronization of our internal body clocks and optimize metabolic processes.
By aligning the eating window of the 16:8 plan with the body’s natural circadian rhythms, it is believed to promote better metabolic health and overall well-being.
How to Time the 16/8 Intermittent Fasting Plan
Early Time-Restricted Feeding
With the 16:8 plan, individuals often choose to have their eating window earlier in the day, such as starting eating around mid-morning and finishing by early evening. This aligns with the body’s natural metabolic patterns, as our metabolism tends to be more efficient earlier in the day and gradually slows down in the evening.
Fasting During Sleep
By fasting for 16 hours, a significant portion of the fasting period occurs during sleep. This allows the body to tap into stored energy (glycogen and fat) and promotes fat burning during the fasting phase.
Meal Timing and Sleep Quality
Eating too close to bedtime can negatively affect sleep quality. By adhering to the 16:8 plan and finishing your last meal a few hours before bedtime, you give your body enough time to digest the food, promoting better sleep and allowing the body to focus on repair and rejuvenation during the fasting period.
Hormonal Balance
Circadian rhythms also influence the release of hormones, including insulin, cortisol, and melatonin. Proper alignment of meal timing with circadian rhythms can help regulate these hormone levels and support metabolic health.
16/8 Intermittent Fasting Final Thoughts
While the 16:8 intermittent fasting plan can be structured to align with your circadian rhythms, individual variations exist, and what works best for one person may not be suitable for another.
For this reason, it is essential to listen to your body, adapt the fasting plan to your needs and preferences, and seek guidance from a healthcare professional or registered dietitian if necessary.
The Optimal Wellness Plan — Free, and Readable in About 10 Minutes.
I wrote this book because I wanted to put the most important science into the hands of people who can actually use it — without the jargon, without the hype, and without asking you to overhaul your life overnight.
It covers the five areas that matter most for how well you age: your metabolism, your muscle, your brain, your sleep, and your stress response.
Each section gives you one specific, evidence-backed action you can take this week. Not a complicated protocol. One thing. Because one thing done consistently is worth more than five things done occasionally.
How I Help You Age Better
I've organized everything I offer around five core areas. You probably need help in more than one of these areas - most people do. The good news is if you improve in one area, you are likely to see improvements in other areas.
More Energy & Better Metabolism
You want to wake up ready to go, not drag through the day. This is about optimizing how your body processes food and fuel. Better metabolism means better energy, easier weight control, and stronger physical performance.
Brain Health & Sharp Thinking
Protecting your brain and maintaining your mental clarity as you age isn't something that happens by accident. It requires specific nutrition, sleep habits, movement, and lifestyle strategies specific to brain health. I'll show you exactly what works.
Stay Strong & Move Without Pain
Maintaining muscle, balance, and mobility is what allows you to live a full life and stay independent as you age. Whether it’s hiking, skiing, playing with your kids (or grandkids) or just moving through your day without stiffness - this matters.
Recovery & Physical Resilience
Your body needs proper recovery to stay healthy. This includes good quality sleep, stress management, and movement strategies that help you bounce back faster.
Purpose & Peace of Mind
Physical health is part of the equation. So is feeling like you're in control of your future, living with purpose, and knowing you're doing the right things at the right times.
How I Help You Age Better
I've organized everything I offer around five core areas. You probably need help in more than one of these areas - most people do. The good news is if you improve in one area, you are likely to see improvements in other areas.
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This Book is for You if:
You're between 40 and 75 and serious about staying healthy — not just avoiding disease, but maintaining the energy, strength, and clarity to actually live the life you want.
You're skeptical of quick fixes and extreme programs. You want to know what the research actually says, explained in plain language.
You're willing to make real changes — but you want to start with the ones that matter most, not a 47-point checklist.
You've felt like most health content talks around the issue rather than directly at it.
If that's you, this book was written with you in mind.
A Little About Me
I'm Dr. Stephen Anton. I'm a professor and researcher at the University of Florida, where I've spent more than 25 years studying aging, metabolism, and lifestyle interventions.
I've published over 250 peer-reviewed articles. My research on intermittent fasting was named the most-downloaded article in the journal Obesity in 2019. I've spent my career in the lab and in clinical settings, working with real people on the habits that actually extend healthy, functional life.
I'm also someone who applies this research personally — every day. What I share with you isn't a curated wellness persona. It's what the evidence points to, lived out.
I wrote this book because the science is clear, and too few people have access to it in a form they can actually use.
Get the Free Book.
Ten minutes from now, you'll have a clear picture of where you stand and one specific place to start.
That's the goal — not information overload, but a starting point you can act on today.
No cost. No spam. Unsubscribe anytime.
Recent Blogs
16/8 Intermittent Fasting: Tips from an Industry Expert
The 16:8 intermittent fasting plan, also known as the 16:8 diet or time-restricted feeding, is a popular fasting method that involves restricting your daily eating window to a specific time-period and fasting for the remaining hours of the day.
Table of Contents
16/8 Intermittent Fasting Plan
5 Reasons for the Increased Popularity of 16/8 Intermittent Fasting
Points to Consider While Practicing 16/8 Fasting
Muscle Growth and 16/8 Intermittent Fasting
16/8 Fasting and Your Circadian Rhythm
16/8 Intermittent Fasting Plan
The “16:8” refers to the fasting and eating windows within a 24-hour cycle. Here’s how the 16/8 intermittent fasting plan typically works:
Fasting Window
During the fasting period, you abstain from consuming any calories, allowing only calorie-free fluids such as water, unsweetened tea, or black coffee. Some variations of this plan may allow for minimal-calorie intake during the fasting window, such as a small amount of cream in your coffee.
Eating Window
You designate a specific period of approximately 8 hours during which you consume all your daily calories and meals. This window is the time when you can eat your meals and snacks.
5 Reasons for the Increased Popularity of 16/8 Intermittent Fasting
The reason this approach has become so popular is that it’s highly sustainable and easy to follow once the body has adapted to this way of eating.
The 16:8 intermittent fasting plan gained popularity through a combination of factors, including scientific research, anecdotal evidence, and increased interest in alternative approaches to weight loss and health improvement. Here are a few key factors that contributed to its rise in popularity:
1. Research on Intermittent Fasting
Over the decade, a growing number of studies have explored the benefits of intermittent fasting approaches, with the 16:8 plan being most frequently tested. Findings from research to date has suggested that this approach has a number of potential benefits including fat loss, muscle preservation, enhanced energy, and greater mental clarity.
2. Simplicity and Flexibility
The 16:8 plan offers a simple and flexible approach to fasting. With an 8-hour eating window and a 16-hour fasting window, it can be easily integrated into daily routines. Unlike more extreme fasting methods, such as prolonged multi-day fasting, the 16:8 plan allows for regular daily meals while still providing a fasting period. This simplicity and flexibility made it appealing to individuals looking for a sustainable fasting regimen.
3. Aligning with Circadian Rhythms
The 16:8 plan is designed to align with our natural circadian rhythms, which regulate our sleep-wake cycle and metabolic processes. It takes advantage of the overnight fast that occurs during sleep and extends it to create a longer fasting period.
4. Weight Loss and Wellness Communities
The rise of online communities, social media platforms, and wellness influencers played a significant role in popularizing the 16:8 plan. As individuals shared their personal experiences and success stories with intermittent fasting, it gained traction within weight loss and wellness communities. The accessibility of information, success stories, and tips shared online helped spread awareness and generate interest in the 16:8 plan.
5. Promotion by Health and Fitness Experts
Health and fitness experts, including doctors, nutritionists, and fitness influencers, have also played a role in promoting the 16:8 plan. These experts highlighted the potential benefits of intermittent fasting, including the 16:8 approach, through books, articles, podcasts, and media appearances. Their endorsement and expertise helped increase awareness and credibility around the plan.
Points to Consider While Practicing 16/8 Fasting
It’s important to note that while the 16:8 plan has gained popularity, individual experiences and results will vary. There are many factors that can influence your success on this program but probably the most important one is “what” you eat during the eating period. The importance of proper fuel consumption cannot be overemphasized.
Here are some key points to consider regarding the 16/8 intermittent fasting plan:
Flexibility
The 16/8 plan offers flexibility in choosing the eating window that suits your schedule and preferences. Common approaches include starting the fast in the evening after dinner and skipping breakfast the next morning or delaying the first meal of the day until later in the morning.
Benefits
Potential benefits of the 16:8 IF plan include fat loss, improved insulin sensitivity, enhanced cellular repair processes, and better metabolic health and brain function.
Balanced Nutrition
While the 16:8 plan focuses on when you eat, it’s still essential to prioritize a balanced and nutritious diet during your eating window. Pay attention to portion sizes, choose whole foods, include a variety of fruits and vegetables, incorporate lean proteins and healthy fats.
Hydration
Staying hydrated is crucial during fasting periods. Drink plenty of water throughout the day to support your overall well-being.
Personalization
It’s important to consider your individual health status, dietary needs, and any underlying medical conditions. If you have concerns or specific health conditions, regimen.
Remember, consistency and sustainability are key factors in any dietary approach. It’s essential to find a pattern that works well with your lifestyle and promotes a healthy relationship with food.
Muscle Growth and 16/8 Intermittent Fasting
The 16:8 intermittent fasting plan may not be considered the optimal approach for maximizing muscle growth compared to other dietary strategies.
Muscle growth requires an adequate intake of nutrients, particularly protein, to provide the necessary building blocks for muscle synthesis and repair.
In the 16:8 plan, there is a limited eating window of 8 hours, which may make it challenging for some individuals to consume enough calories and nutrients, including protein, within that time frame.
This could potentially hinder muscle growth if nutrient intake is not properly managed.
However, as described in the blog “Intermittent Fasting for Bulking” this is certainly possible and I believe that fasting and bulking (muscle growth) can be combined successfully.
Maximizing Muscle Growth While Fasting
Compared to standard bulking approaches, intermittent fasting and bulking is healthier, more effective, and produces less body fat gain. You will also experience healthier cells, improved muscle maintenance, higher quality muscle growth, and increased human growth hormone.
To maximize your results, remember to focus on consuming calories during your natural anabolic windows. For most people, that means when you first break your fast (typically in the late morning), and right after your evening workout.
16/8 Fasting and Your Circadian Rhythm
The 16:8 intermittent fasting plan can be designed to align with circadian rhythms, which are the natural biological rhythms that regulate various physiological processes in the body, including metabolism and sleep-wake cycles.
Our circadian rhythms are influenced by external cues, such as light and darkness, and play a role in regulating metabolism. The timing of food intake can impact the synchronization of our internal body clocks and optimize metabolic processes.
By aligning the eating window of the 16:8 plan with the body’s natural circadian rhythms, it is believed to promote better metabolic health and overall well-being.
How to Time the 16/8 Intermittent Fasting Plan
Early Time-Restricted Feeding
With the 16:8 plan, individuals often choose to have their eating window earlier in the day, such as starting eating around mid-morning and finishing by early evening. This aligns with the body’s natural metabolic patterns, as our metabolism tends to be more efficient earlier in the day and gradually slows down in the evening.
Fasting During Sleep
By fasting for 16 hours, a significant portion of the fasting period occurs during sleep. This allows the body to tap into stored energy (glycogen and fat) and promotes fat burning during the fasting phase.
Meal Timing and Sleep Quality
Eating too close to bedtime can negatively affect sleep quality. By adhering to the 16:8 plan and finishing your last meal a few hours before bedtime, you give your body enough time to digest the food, promoting better sleep and allowing the body to focus on repair and rejuvenation during the fasting period.
Hormonal Balance
Circadian rhythms also influence the release of hormones, including insulin, cortisol, and melatonin. Proper alignment of meal timing with circadian rhythms can help regulate these hormone levels and support metabolic health.
16/8 Intermittent Fasting Final Thoughts
While the 16:8 intermittent fasting plan can be structured to align with your circadian rhythms, individual variations exist, and what works best for one person may not be suitable for another.
For this reason, it is essential to listen to your body, adapt the fasting plan to your needs and preferences, and seek guidance from a healthcare professional or registered dietitian if necessary.
© Copyright 2026 | All Rights Reserved Dr. Stephen Anton | Terms & Conditions
This information is for educational purposes only and is not a substitute for personalized medical advice. Please consult your physician before making changes to your health routine.