This summer, Americans will gather to celebrate 250 years of the greatest democratic republic the world has ever produced. There will be fireworks, parades, and pride. And behind it all, an unsettling and quiet truth: we are the sickest we have ever been.

More than 70% percent of American adults are overweight or obese. Over 40 million are living with diabetes. Cardiovascular disease and metabolic dysfunction continue to rise despite decades of public health campaigns and billions in pharmaceutical spending. But these are not just abstract statistics. They are our neighbors, our families, and increasingly, our future.

This is not just a public health problem. It is a national security risk.

Today, the majority of young Americans are unfit for military service, with obesity and poor physical health among the leading disqualifiers. A nation that cannot physically defend itself cannot sustain itself indefinitely.

That reality makes President Trump’s recent executive order to reestablish the Presidential Fitness Test more than symbolic — it makes it necessary.

When Dwight D. Eisenhower established the original President’s Council on Youth Fitness in 1956, he was responding to a similar warning sign: American children were falling behind—not academically, but physically. Their strength, endurance, and resilience were declining.

The solution was not complicated. It was cultural.

Physical fitness was treated as a national priority. Standards were set. Expectations were clear. And leaders reinforced a simple idea: strong bodies help build a strong nation. John F. Kennedy carried that message forward, emphasizing that physical vitality was not optiona l— it was foundational to American leadership at home and abroad. Over time, that clarity faded. The mission expanded, softened, and lost urgency. Fitness became a suggestion rather than a standard.

The results speak for themselves.

President Trump’s decision to restore focus is not about nostalgia. It is a recognition that the culture has drifted — and that reversing course requires leadership. But policy alone is not enough.

As a PhD-trained nutritional scientist and registered dietitian, I have spent years working with Americans trying to regain control of their health. I have also lived the discipline of physical performance as a former professional ballerina. I know what the human body is capable of under the right conditions.

What I see today is not a failure of willpower. It is a failure of physiology.

For too long, Americans have been told that weight loss is simply a matter of eating less and moving more. When that fails, individuals are blamed. But the reality is more complex—and more urgent.

Chronic stress, poor sleep, ultra-processed diets, and hormonal disruption have left millions of Americans metabolically compromised. In this state, the body resists fat loss, energy declines, and long-term health deteriorates. This is not a character flaw. It is a biological condition.

And it has national consequences.

When metabolic health declines, so does military readiness. Workforce productivity weakens. Healthcare costs surge. Mental health suffers. These systems are not separate. The body and the mind rise and fall together.

If we are serious about restoring American strength, we must address the biological foundation of that strength. That starts with rebuilding metabolic health — and reinforcing a culture that values physical readiness.

The reinstatement of the Presidential Fitness Council is an important signal. But it must be matched by individual action.

At the most basic level, two shifts would dramatically improve the health trajectory of millions of Americans:

First, prioritize protein intake. Adequate protein is essential for preserving lean muscle, stabilizing blood sugar, and reducing the cravings that drive overeating. Yet most Americans consume far too little protein and far too many processed carbohydrates. Correcting that imbalance alone can produce measurable improvements.

Second, treat sleep as non-negotiable. Sleep is not a luxury — it is a metabolic requirement. Chronic sleep deprivation disrupts hormones, increases stress, and makes fat loss significantly more difficult. Seven to nine hours of quality sleep is one of the most powerful, and most overlooked, health interventions available.

These are not trends. They are fundamentals. And they point to a broader truth: restoring national health does not require complicated solutions. It requires consistent ones.

America’s 250th anniversary offers a rare moment to reset — not with empty resolutions, but with clear decisions. Not through mandates or quick fixes, but through responsibility supported by a culture that values strength, discipline, and resilience.

President Trump has pointed us in the right direction. The question is whether we are willing to follow it. Because the strength of a nation is not measured by its rhetoric, but by the health and readiness of its people.

And right now, that foundation is at risk.

Dr. Ashley Lucas, PhD, RD, is a nutritional scientist, registered dietitian, and founder of PHD Weight Loss. She is a former professional ballerina.