Why You're Gaining Weight: The 6 Real Reasons and How to Fix Them (Part 2)

In Part 2, we reveal the 6 root causes that throw your metabolism off track—like blood sugar swings, stress, poor sleep, and hidden inflammation. These imbalances keep your body in fat-storage mode, no matter how little you eat. The solution? Target the root, and your metabolism will take care of the rest.

Coach Sylvain

4/3/20253 min read

person's left hand wrapped by tape measure
person's left hand wrapped by tape measure

Part 2 of The Truth About Metabolism

In Part 1, we looked at why traditional advice—like “eat less, move more”—doesn’t solve the real problem.
We also talked about how metabolism isn’t broken... it’s responding to what’s happening under the surface.

If you feel like your body is stuck in fat-storage mode, it’s time to stop blaming your metabolism and start looking at what’s really going on.

Let’s break down the 6 true root causes that disrupt metabolism—and what you can do about them.

1. Blood Sugar Instability

Unstable blood sugar levels are one of the fastest ways to slow your metabolism and trigger fat storage.

When you eat, your body releases insulin to move glucose into your cells. But:

  • Eating too many processed carbs spikes insulin repeatedly

  • Over time, this leads to insulin resistance, making your body store more fat

  • You feel tired, crave more sugar, and the cycle repeats

The fix:

  • Focus on whole, fiber-rich meals with protein and healthy fats

  • Eat non-starchy vegetables first in your meal to reduce sugar spikes

  • Try 10 minutes of light movement (like a walk) after meals

  • Avoid sugary snacks, energy drinks, and artificial sweeteners

📖 Research: Insulin resistance is directly linked to increased fat storage and disrupted metabolism (Schoenaker et al., 2018; Ludwig & Ebbeling, 2018)

2. Chronic Inflammation

Low-grade, long-term inflammation impacts nearly every system in your body—including how you burn fat.

Inflammation disrupts:

  • Mitochondria, your body’s energy producers

  • Leptin, which tells your brain you’re full

  • Insulin sensitivity, leading to higher blood sugar and more fat storage

The fix:

  • Prioritize anti-inflammatory foods like leafy greens, fatty fish, turmeric, ginger, and berries

  • Minimize processed food, sugar, and seed oils

  • Manage stress and get enough sleep

📖 Research: Chronic inflammation is a predictor of insulin resistance and metabolic dysfunction (Hotamisligil, 2006; Calder et al., 2017)

3. Hormonal Dysregulation

Hormones like insulin, cortisol, thyroid, and leptin all work together to regulate weight. When they’re out of balance, metabolism slows.

What throws them off?

  • High stress

  • Poor sleep

  • Inflammation

  • Blood sugar issues

The fix:

  • Eat regularly and avoid skipping meals

  • Get 7–9 hours of quality sleep

  • Add stress-reducing practices like breathing, nature walks, or journaling

  • Test—not guess—your hormone levels (especially thyroid, cortisol, insulin)

📖 Research: Hormonal balance is essential for regulating fat metabolism and energy use (Friedman & Halaas, 1998; Pasquali et al., 2006)

4. Nutrient Deficiencies

Even if you're eating "enough," you might still be undernourished—especially if your diet is processed or repetitive.

Deficiencies in magnesium, vitamin D, iron, B vitamins, and omega-3s impact:

  • Thyroid function

  • Hormone production

  • Mitochondrial energy

  • Blood sugar regulation

The fix:

  • Eat a variety of nutrient-dense foods: vegetables, protein, healthy fats, and some fruit

  • Supplement strategically when needed (after bloodwork)

  • Focus on food quality, not just calories

📖 Research: Micronutrient imbalances contribute to weight gain and metabolic issues (Gao et al., 2008; García et al., 2012)

5. Poor Sleep and Recovery

Lack of sleep doesn’t just make you tired—it disrupts nearly every system that supports a healthy metabolism.

Sleep loss leads to:

  • Higher cortisol (stress hormone)

  • Increased cravings, especially for sugar

  • Disrupted insulin and leptin signaling

  • Slower metabolism and recovery

The fix:

  • Stick to a consistent bedtime and wake time

  • Limit screens and stimulants at night

  • Get morning light and move during the day

  • Prioritize rest days between workouts

📖 Research: Sleep deprivation is linked to insulin resistance and weight gain (Van Cauter et al., 2008; Medic et al., 2017)

6. Stress Overload

Chronic stress keeps your body in fight-or-flight mode—which is the opposite of fat-burning mode.

Too much cortisol can:

  • Raise blood sugar

  • Disrupt digestion

  • Suppress thyroid function

  • Trigger fat storage, especially around the belly

The fix:

  • Build daily stress relief into your routine (even 5 minutes helps)

  • Practice mindfulness, breathing, or grounding exercises

  • Avoid high-stress diets or extreme fitness plans that backfire

  • Create margin in your day for stillness and rest

📖 Research: Chronic stress is associated with abdominal fat and impaired metabolic function (Epel et al., 2000; Adam & Epel, 2007)

What Now?

If you’re dealing with fatigue, stubborn weight, cravings, or brain fog—your body is likely stuck in this root cause cycle.

But here’s the good news:
Once you address the root issues, your metabolism naturally starts working again.
Your energy goes up. Cravings go down. Fat loss becomes sustainable.

If you're ready to stop guessing and get a personalized, science-backed plan that actually works with your metabolism, then book your FREE Healthy Weight Strategy Session today.

You’ll walk away with clear next steps based on your biology—not willpower.