Lactic Acid: Not What You Think—The Truth About Its Role in Your Health
Lactic acid gets a bad rap—often blamed for muscle soreness and fatigue. But what if it’s actually an essential part of your body’s energy system? More importantly, what if tracking lactic acid levels could signal that something isn’t quite right internally?

Beyond exercise, lactic acid plays a crucial role in digestion, metabolism, and even disease prevention, making it far more important than most people realize. Understanding it could help optimize your health and endurance while revealing early signs of metabolic issues.

What Exactly Is Lactic Acid?
Your body produces lactic acid when breaking down glucose for energy—especially when oxygen levels are low, such as during exercise or stress. But it’s more than just a workout byproduct—lactic acid plays a crucial role in digestion and immune function, making it essential for overall well-being. Doctors often use lactate levels as a clue to detect oxygen deprivation, metabolic imbalances, or even how the body is responding to illness.

Lactic Acid & Health Conditions
While normal lactic acid production is beneficial, excessive buildup may indicate underlying issues:
  • Heart Health Issues – Oxygen deprivation from conditions like heart failure or circulation problems. Doctors often monitor lactate levels in the blood to assess heart function and recovery, helping detect oxygen deprivation early.
  • Cancer Metabolism – Some cancer cells rely on lactic acid for growth, weakening the immune system. Researchers are studying ways to block lactic acid in cancer cells, which may slow tumor growth.
  • Diabetes & Metabolic Disorders – Poor blood sugar regulation can lead to excess lactic acid buildup. 
  • Sepsis & Infections – High lactate levels may indicate severe infection or impaired oxygen use.
Curious about your levels? 
A lactate test measures it through a quick blood test, helping assess your metabolism, oxygen flow, and overall health. Normal levels range from 0.5 to 2.2 mmol/L, but higher levels may indicate underlying conditions.

How to Keep Lactic Acid in Balance
✔ Stay Active – Regular movement improves circulation and muscle efficiency.
✔ Hydrate – Since lactic acid dissolves in water, hydration is key for clearing excess buildup.
✔ Eat Smart – Magnesium- and potassium-rich foods support muscle recovery.
✔ Prioritize Recovery – Stretching and light movement help regulate lactic acid post-workout.
✔ Support Gut Health – Fermented foods like sauerkraut and tempeh aid digestion and immunity.

Lactic acid isn’t an enemy—it’s a vital part of energy production and wellness. Balancing it can improve endurance, metabolism, and long-term health.

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This blog is dedicated to Irl Flanagan, who was my friend and grammar mentor. Over the last 20 or so years, he spent countless hours editing my manuscripts and teaching me the intricacies of sentence structure and the true meaning and the proper usage of words. 

Irl died 4 months before his 100th birthday.

Meet Peggy

 
Peggy Kraus is an exercise physiologist and diabetes care and education specialist. Her clients say her superpower is helping people reverse type 2 diabetes—but the impact of her work goes far beyond that.

With almost 30 years in cardiac rehab, Peggy has seen firsthand how the American diet has taken a toll on so many lives, leading to chronic disease and unnecessary suffering. She knows health isn't just about managing symptoms—it’s about reversing disease when possible, feeling strong and energized, and thriving.

Over the years, she’s helped thousands of people lower blood sugar, lose weight, improve cholesterol, and reduce blood pressure—all with simple, strategic lifestyle changes. Her 6-week program, 5 to Thrive, is built on five key strategies that her most successful students have used to create lasting health transformations.

Her upcoming program, Diabetes Rescue, is a type 2 diabetes reversal program designed to give people the tools to take back control of their health and make lasting changes—so they can say goodbye to diabetes for good and reclaim the vibrant life they deserve.

Her plant-based approach is powerful. And so are the results her clients achieve.


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