The Diet Compass: Science-Based Nutrition for Longevity

Bas Kast's The Diet Compass emerged from the author's personal health scare at age 40, prompting him to analyze thousands of nutritional studies to discover what truly constitutes healthy eating. The book distills complex research into 12 practical principles for eating to live longer and healthier.

Core Principles

Prioritize whole, unprocessed foods over refined products that your great-grandmother wouldn't recognize
Balance protein intake: Get enough for satiety (15% of calories) but avoid excess animal protein in mid-life, which can accelerate aging
Choose carbs wisely: Eliminate sugar and refined starches; favor fiber-rich, low-glycemic options like vegetables, legumes, and whole grains
Embrace healthy fats: Use olive oil, nuts, and omega-3 rich fish while avoiding trans fats entirely

Lifestyle Integration

Make plants the foundation of your diet, using meat sparingly as a side rather than the main course
Time your eating: Incorporate overnight fasting periods and avoid late-night meals to support cellular repair
Skip supplements in favor of nutrient-dense whole foods (except vitamin D and B12 when needed)
Drink smart: Choose water and moderate coffee over sugary beverages and fruit juices

Kast emphasizes that healthy eating isn't about perfection or extreme restrictions, but about consistently making informed choices that support long-term health and longevity.