For this Michigan veteran, a life-changing health journey became a mission to inspire others through faith, perseverance, and service.
At 76 years old, Charles “Chuck” Postma of Muskegon, Michigan, has plenty to celebrate. He's a Vietnam War veteran, a husband of nearly 57 years, a father of two, a grandfather of three, and a proud great-grandfather. But one of his most remarkable accomplishments came later in life, when he made a decision that would transform his health and ultimately inspire thousands of others.
Chuck lost 100 pounds, reclaimed his health, and discovered a renewed sense of purpose along the way.
Today, he's not just maintaining his own healthy lifestyle. He's helping others discover that meaningful change is possible, no matter their age.
A Turning Point Rooted in Faith
For Chuck, the motivation to change his health wasn't simply about losing weight or looking better. It was deeply personal and rooted in his Christian faith.
Inspired by the biblical reminder in 1 Corinthians 6:19 that our bodies are temples of the Holy Spirit, Chuck began reconsidering his relationship with food and the responsibility he felt to care for his health. His journey required more than changing what was on his plate. It meant changing the way he thought about food, self-discipline, and self-respect.
That transformation eventually became the inspiration for his 2023 book, 100 Pounds Ago…I Started Learning How to Love Myself More Than the Pleasure of Food.
The title reflects one of the most important lessons he learned: lasting change begins with how we value ourselves.
On July 17, 2019, Chuck reached his goal weight—a milestone that carried special meaning.
He weighed 10 pounds less than he had on his 18th birthday, when his weight was recorded on his military draft card. His high school class ring fit again, and he could wear the military uniform that had been fitted for him in 1969. For Chuck, those moments were powerful reminders of just how far he'd come.
Finding a Healthy Routine That Works
Chuck's approach to maintaining his weight centers on consistency, whole foods, and intermittent fasting.
He generally eats two meals a day, breakfast and lunch, and occasionally practices a one-meal-a-day routine. His diet emphasizes whole, minimally processed foods, with a focus on fish, vegetables, and other lower-carbohydrate choices.
He credits these habits with helping him maintain his weight and feel healthier, but Chuck is also quick to acknowledge that the journey hasn't always been easy.
Snacking between meals was one of his biggest challenges. He initially tried replacing less nutritious snacks with healthier alternatives, but eventually found that eliminating between-meal snacking worked best for him.
Like many people who have experienced significant weight loss, Chuck has also encountered setbacks. Twice, he found himself about 20 pounds above his maintenance goal. Rather than giving up, he returned to the habits that had helped him succeed.
His experience offers a relatable reminder that maintaining progress isn't about being perfect. It's about recognizing when you've drifted away from your goals and being willing to begin again.
While intermittent fasting has been an important part of Chuck's personal journey, it's not the right approach for everyone. Older adults, especially those managing medical conditions or taking medications, should consult their healthcare provider before making significant changes to meal timing or food intake.
Staying Strong, Active, and Independent at 76
Although nutrition played the biggest role in Chuck's initial weight loss, physical activity has become an increasingly important part of his daily routine.
And he doesn't need an elaborate gym membership or complicated workout plan to stay moving.
His regular routine includes pushups, isometric bicep curls, squats, glute bridges, and abdominal exercises. He also practices standing on one foot at a time for at least 20 seconds, helping maintain his balance as he ages.
During the warmer months, mowing the lawn provides additional activity. In the winter, he uses a Gazelle glider for 30-minute sessions a couple of times a week. It's a practical combination of strength, balance, and cardiovascular movement, three important components of maintaining physical function and independence as we grow older.
Today, he describes himself as living an active, pain-free life and feeling capable of doing many of the same things he enjoyed decades ago.
Turning Personal Success Into a Mission to Serve
While losing 100 pounds is an extraordinary accomplishment, Chuck's story doesn't end with the number on the scale. In many ways, that's where a new chapter began.
After retiring in 2016 from Howmet Aerospace, where he worked as a project engineer, Chuck continued looking for ways to put his experience and abilities to good use. Service has always been a priority.
He remains deeply involved in his small church community, where he serves as both a deacon and treasurer, helps maintain the building and grounds, and occasionally fills in for the church's 80-year-old pastor.
In February 2021, Chuck founded a Facebook group called Fasting for Seniors, creating a place where people could connect, share their experiences, and encourage one another.
What began as a personal passion has grown into a community of more than 10,000 members.
For Chuck, one of the most rewarding parts of his journey is hearing from people who have made positive changes in their own lives.
"Every day I communicate with people who have used fasting to achieve a level of health they never thought they would see again," he shares.
Through his online community and his book, Chuck hopes to encourage others to take an active role in their well-being. His story is a reminder that our own challenges and victories can sometimes become the very experiences that equip us to help someone else.
A Life Built Around Purpose
Despite his growing online community and passion for health, Chuck's priorities remain close to home. He and his wife, Sue, are approaching 57 years of marriage, and he still spends plenty of time taking care of their home and property. He also enjoys all things coffee-related, a favorite interest that adds a little extra enjoyment to his daily routine.
Between family, church, maintaining his health, and supporting his online community, Chuck has built a retirement filled with purpose.
Healthy aging isn't only about what we eat, how much we exercise, or what the scale says. It's also about having meaningful relationships, opportunities to contribute, and reasons to get up each morning.
Chuck has found all three.
His Advice to Other AMAC Members
When asked what keeps him motivated to stay healthy and active as he gets older, Chuck's answer is refreshingly simple:
"Having some love and respect for myself."
For Chuck, taking care of his health is an expression of self-respect, faith, and gratitude for the life he's been given. His advice to others is to take an honest look at the habits that may be holding them back and make a commitment to change.
While his personal approach has emphasized fasting and dietary discipline, the larger lesson is one that applies to everyone: lasting improvement often begins with a decision to take better care of ourselves, followed by the consistency to keep going.
At 76, Chuck is living proof that meaningful transformation doesn't have to be reserved for our younger years.
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