🛒 Recommended Supplements
Is There Insulin Sensitivity?
Insulin sensitivity is the ability of the body's cells to respond effectively to insulin and take up glucose from the blood. The higher the sensitivity, the less insulin is needed to transport the same amount of glucose. For athletes this is especially important: good insulin sensitivity = efficient carbohydrate use by muscles, better recovery, less fat accumulation.
Insulin resistance (the opposite state) — cells do not respond to insulin, the pancreas produces more and more insulin, glucose remains in the blood. This leads to type 2 diabetes, obesity, metabolic syndrome. Even lean athletes can have insulin resistance!
🎯 Why Is Insulin Sensitivity Important for Athletes?
💪 Glycogen Replenishment
After training, muscles are especially sensitive to insulin. Good sensitivity = faster glycogen restoration = faster recovery.
🧬 Muscle Protein Synthesis (MPS)
Insulin is an anabolic hormone — it promotes amino acid transport into muscles and inhibits proteolysis.
🔥 Fat Burning
When insulin sensitivity is good, the body more easily switches to fat as a fuel source between meals and during training.
⚡ Energy Levels
Stable blood sugar levels = steady energy without "dips" and fatigue. Insulin resistance causes energy fluctuations.
⚠️ What Reduces Insulin Sensitivity?
| Factor | Mechanism | Effect | Solution |
|---|---|---|---|
| Sedentary lifestyle | Muscles do not use glucose → fewer GLUT4 transporters | Significant decrease in sensitivity | Daily activity, NEAT |
| Excess refined carbohydrates | Constant insulin spikes → receptor desensitization | Gradual deterioration of sensitivity | Complex carbohydrates, fiber |
| Sleep deprivation (<6 val.) | Dysregulation of cortisol and growth hormone | The effect of one sleepless night is equivalent to a prediabetic state! | 7–9 hours of sleep, circadian rhythm |
| Chronic inflammation | Inflammatory cytokines (TNF-α, IL-6) block insulin signaling | Vicious cycle: resistance → more inflammation | Omega-3, antioxidants, anti-inflammatory nutrition |
| Stress / high cortisol | Cortisol increases glucose production in the liver | Higher fasting blood sugar | Stress management, adaptogens |
| Trans fats, excess fructose | Direct toxic effect on the liver | Hepatic insulin resistance | Avoid processed foods |
📋 Strategies to Improve Insulin Sensitivity
Strength Training — the #1 Tool
One strength training session can increase insulin sensitivity for 24–48 hours. Muscle contractions via the AMPK pathway increase translocation of GLUT4 transporters to the cell surface. 3–4 strength training sessions per week.
HIIT — Short and Effective
20 min of HIIT can improve insulin sensitivity as much as 60 min of moderate cardio. Sprints, interval exercises — an excellent addition.
Carbohydrate "Periodization"
More carbohydrates — only around training. On rest days — fewer carbohydrates, more fats. This teaches the body to be "metabolically flexible".
Do Not Starve — Eat Enough Protein
2.0–2.5 g/kg of protein per day helps maintain muscle mass, which is the main glucose "consumer". More muscle = greater insulin sensitivity.
Use "Insulin Sensitivity" Supplements
Berberine (500 mg 2–3×/day with meals), cinnamon (1–3 g/day), alpha-lipoic acid (ALA, 300–600 mg/day), chromium picolinate (200–400 µg/day), apple cider vinegar (1–2 tbsp before a meal).
Walking After a Meal
10–15 min of light walking after a meal can reduce the post-meal glucose spike. Simple but very effective.
💊 Supplements for Insulin Sensitivity (Glucose Metabolism)
| Supplement | Mechanism | Dose | Level of Evidence |
|---|---|---|---|
| Berberine | AMPK activation, similar to metformin | 500 mg 2–3×/day with food | High (comparable to metformin) |
| Cinnamon (Cinnamomum cassia) | Enhancement of insulin signaling | 1–3 g/day (½–1 tsp) | Intermediate |
| Alpha-Lipoic Acid (ALA) | Antioxidant, increases GLUT4 translocation | 300–600 mg/d. | Intermediate |
| Chromium Picolinate | Cofactor for insulin receptors | 200–400 µg/d. | Moderate (especially in deficiency) |
| Apple Cider Vinegar (ACV) | Slows carbohydrate digestion | 1–2 tbsp before a meal | Moderate (especially for post-meal glucose spikes) |
| Magnesium | Essential for insulin signaling and secretion | 400–500 mg/d. | High (especially in deficiency) |
| Vitamin D3 | Improves insulin sensitivity through multiple mechanisms | 2000–5000 IU/d. | Intermediate |
📊 Glucose Monitoring — Practical Indicators
Blood test reference ranges: Fasting glucose: 70–99 mg/dL (3.9–5.5 mmol/L). HbA1c: <5.7% (normal), 5.7–6.4% (prediabetes), ≥6.5% (diabetes). Fasting insulin: 2–10 µIU/mL. HOMA-IR index (insulin × glucose / 405): <1.0 — puikus, 1.0–2.5 — normalus, >2.5 — resistance.
💡 Practical Everyday Tips
📝 Monitor and Adjust
Keep a food diary for at least 2 weeks. What works for your body is individual. Review the results every month and adjust your strategy.
⏰ Consistency — More Important Than Perfection
Better 80% optimal nutrition every day than 100% one week and 50% the next. Consistency is the key to long-term results.
🔬 Individual Differences
What works for your training partner will not necessarily work for you. Genetics, microbiota, hormones — everything is individual.
📊 Measure Progress
Do not rely on the scale alone. Measure body circumferences, track strength indicators, and take progress photos every 4 weeks.
❓ Frequently Asked Questions
Q: Is this strategy suitable for beginners?
A: Yes! Start with the basic principles and gradually incorporate more advanced techniques. The most important thing is to start and be consistent.
Q: How quickly will I see results?
A: The first changes (energy level, well-being) — within 1–2 weeks. Body composition changes — within 4–8 weeks. Sports results — within 8–12 weeks.
Q: Do I need to take supplements for this to work?
A: No! Supplements are only a SUPPLEMENT to a balanced diet and proper training. First sort out your nutrition, sleep, and training — only then think about supplements.
🧠 Myths and Truth
❌ Myth: It works the same for everyone
✅ Truth: Everyone's body is unique. Genetics, hormone levels, training experience, and dietary habits determine the individual response. What works for one person will not necessarily work for another.
❌ Myth: The more, the better
✅ Truth: More is not always better. Too high doses, too frequent training, or too long a protocol can have the opposite effect. The sweet spot is the key to success.
❌ Myth: Results are visible immediately
✅ Truth: The body needs time to adapt. The first changes — within 2–4 weeks. Significant results — within 8–12 weeks of consistent work. Patience is essential!
❌ Myth: Supplements will solve all problems
✅ Truth: Supplements are only an auxiliary aid. Without proper nutrition, sleep, and training — no supplement will work. First, get the basics in order!