Dear readers,
A recent Levels Health article highlighted something we often overlook: not all proteins affect your body the same way. While most of us focus on getting enough protein, the type of protein matters just as much for metabolic health, energy levels, and long-term wellness.
What Makes a Protein “High-Quality”?
The best protein sources offer:
- All essential amino acids your body can’t make
- High digestibility and absorption
- Minimal blood sugar impact
- Additional beneficial nutrients
Top Protein Sources for Metabolic Health
Animal-Based Winners
Pasture-Raised Eggs
- Complete protein package (6g per egg)
- Minimal blood sugar impact
- Rich in choline and B vitamins
- Takeaway: Don’t skip the yolks—they contain most of the nutrients!
Wild-Caught Fatty Fish
- 20-25g protein per serving
- Omega-3s support insulin sensitivity
- Steady energy with no glucose spikes
- Takeaway: Smaller fish like sardines offer bonus calcium and fewer contaminants
Grass-Fed Beef
- 7g protein per ounce
- Higher in anti-inflammatory omega-3s than conventional beef
- Exceptional source of bioavailable iron, zinc, and B vitamins
- Takeaway: Quality matters—grass-fed offers a significantly different nutrient profile
Plant-Based Options
Hemp Seeds
- 10g protein per 3 tablespoons
- Contains all essential amino acids
- Minimal carbs, gentle on blood sugar
- Takeaway: An easy add-on to meals for protein boost without glucose impact
Tempeh
- 15-20g protein per 3-ounce serving
- Fermentation improves digestibility and reduces antinutrients
- Creates beneficial compounds for gut health
- Takeaway: One of the most metabolically friendly soy options
Legumes (With a Caveat)
- 15-18g protein per cup
- Contains beneficial fiber and resistant starch
- May cause moderate glucose response
- Takeaway: Pair with healthy fats and non-starchy vegetables to moderate blood sugar impact
Simple Strategies for Better Protein
Protein-First Approach Eating protein before carbohydrates in a meal can significantly reduce glucose spikes and increase satiety.
Mix Your Sources Different proteins offer different benefits. Rotating sources ensures a broader spectrum of nutrients and reduces risk of sensitivities.
Distribute Throughout the Day Spreading protein intake across meals supports better muscle synthesis and steadier energy than consuming most at dinner.
Bottom Line
The protein sources that best support metabolic health provide complete amino acids with minimal glycemic impact. While animal proteins typically offer the most efficient nutrient packages, strategic plant proteins play valuable complementary roles.
The best approach? Monitor how different proteins affect your energy, hunger, and overall wellbeing. The right protein for you fits into your personal pattern of health-supporting nutrition.
To your wellness,
Dr. Alex Gajer
