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Complete Guide
Forget diet trends. This guide covers what the science actually says about eating for energy, body composition, gut health, and a longer, healthier life.
6
Core nutrition principles
8
Anti-inflammatory foods
6
Supplements reviewed
30+
Plant species/week (target)
The Evidence
These principles are universally supported by research. Master these before worrying about meal plans, macros, or supplements.
Protein is the most important macronutrient for body composition, muscle maintenance, satiety, and longevity. Most people dramatically under-eat protein. Research shows 1.6-2.2g per kg of body weight optimizes muscle protein synthesis, while even sedentary adults benefit from 1.2g/kg. Distribute protein evenly across 3-4 meals (30-50g per meal) to maximize absorption. Prioritize complete protein sources: meat, fish, eggs, dairy, or strategic plant combinations.
Morton et al., British Journal of Sports Medicine, 2018
Carbohydrates are your primary fuel for high-intensity exercise, brain function, and mood. The key isn't low-carb or high-carb — it's earning your carbs through activity and choosing quality sources. Prioritize complex carbs (sweet potatoes, oats, rice, fruit) over refined ones. Time your highest carb intake around training sessions for performance and recovery. On rest days, moderate intake naturally.
Burke et al., Journal of Sports Sciences, 2011
Dietary fat is essential for hormone production (testosterone, estrogen), brain function (your brain is 60% fat), vitamin absorption (A, D, E, K), and inflammation regulation. Aim for 0.8-1.2g per kg of body weight. Prioritize omega-3s (fatty fish, fish oil), monounsaturated fats (olive oil, avocado), and minimize industrial seed oils (soybean, canola, corn oil) which are high in inflammatory omega-6.
Simopoulos, Biomedicine & Pharmacotherapy, 2002
Fiber is the primary fuel for your gut microbiome. Most adults get 10-15g/day — less than half the recommended 25-38g. Soluble fiber (oats, beans, fruit) feeds beneficial bacteria and produces short-chain fatty acids that reduce inflammation and improve immune function. Insoluble fiber (vegetables, whole grains) promotes regularity. Diversity matters: aim for 30+ different plant species per week for maximum microbiome diversity.
McDonald et al., mSystems, 2018
Water alone isn't enough. Your body needs sodium, potassium, and magnesium to transport water into cells. Start each day with 16-24oz of water with a pinch of salt. During training, add electrolytes (especially sodium at 500-1000mg per liter). Monitor urine color — pale yellow indicates adequate hydration. Coffee and tea count toward total fluid intake despite their mild diuretic effect.
Shirreffs & Sawka, Journal of Sports Sciences, 2011
Calories tell you quantity; micronutrients tell you quality. Two 500-calorie meals can have wildly different effects on your health depending on their vitamin, mineral, and phytochemical content. Prioritize nutrient-dense whole foods: organ meats, wild-caught fish, dark leafy greens, cruciferous vegetables, berries, eggs, and fermented foods. The more colorful your plate, the more diverse your micronutrient intake.
Drewnowski, American Journal of Clinical Nutrition, 2005
Want This Personalized?
This guide gives you the science. A CryoCove coach gives you the personalization — the right dose, timing, and integration with your other 8 pillars.
Your Plate
Chronic inflammation is the root of most modern disease. These foods are your first line of defense — backed by research, not marketing.
2-3g omega-3 per serving. Reduces CRP, IL-6, TNF-alpha. Aim for 2-3 servings/week.
Anthocyanins reduce oxidative stress by 20-40%. Blueberries and blackberries are most studied.
Oleocanthal mimics ibuprofen. 2 tbsp/day reduces inflammatory markers as effectively as low-dose NSAIDs.
500-1000mg curcumin with black pepper (piperine) inhibits NF-kB, a master inflammation switch.
Sulforaphane (broccoli, cauliflower, kale) activates Nrf2 pathway — your body's antioxidant defense system.
Kimchi, sauerkraut, kefir, yogurt. Probiotics + postbiotics reduce gut inflammation and improve barrier function.
EGCG is a potent anti-inflammatory polyphenol. 3-4 cups/day reduces CRP by 30% in meta-analyses.
Flavanols improve endothelial function and reduce LDL oxidation. 1-2 squares (20-30g) daily.
When to Eat
What you eat matters. When you eat it can make a meaningful difference for performance, recovery, and sleep.
Breaks overnight fast, stabilizes blood sugar, supports cortisol awakening response. 30-40g protein + moderate fats + moderate carbs.
Examples: Eggs with avocado and sourdough, Greek yogurt with berries and nuts, protein smoothie with spinach
Tops off glycogen stores for performance. Avoid high fat and high fiber pre-workout (slows digestion). 30-50g carbs + 20-30g protein.
Examples: Rice cakes with honey and whey, banana with nut butter, oatmeal with protein powder
The 'anabolic window' is wider than previously thought, but protein + carbs post-training accelerates glycogen replenishment and muscle protein synthesis.
Examples: Chicken and rice, protein shake with fruit, salmon with sweet potato
Carbs in the evening support serotonin production (sleep precursor). Avoid large meals too close to bed — digestion raises body temperature and disrupts sleep.
Examples: Fish with vegetables and quinoa, lean meat stew with root vegetables
Supplement Stack
Food first, supplements second. But these fill common gaps that modern diets can't close.
| Supplement | Dose | Evidence | Notes |
|---|---|---|---|
| Omega-3 Fish Oil | 2-3g EPA+DHA combined | Strong | Most impactful supplement for reducing inflammation. Choose triglyceride form over ethyl ester. Take with a fat-containing meal for absorption. |
| Vitamin D3 + K2 | 2000-5000 IU D3 + 100-200mcg K2 | Strong | 40-50% of adults are deficient. Critical for immune function, bone health, and mood. Test blood levels — aim for 40-60 ng/mL. K2 directs calcium to bones, not arteries. |
| Magnesium Glycinate | 200-400mg (elemental) | Strong | Involved in 300+ enzymatic reactions. Most people are deficient. Glycinate form is best for sleep and relaxation. Take before bed. |
| Creatine Monohydrate | 3-5g daily | Strong | One of the most studied supplements in history. Benefits muscle, brain, and bone. No loading phase needed. Take daily, timing doesn't matter. |
| Probiotic (Multi-Strain) | 10-50 billion CFU | Moderate | Specific strains for specific goals: Lactobacillus rhamnosus for immunity, B. longum for mood, S. boulardii for gut barrier. Rotate strains every 2-3 months. |
| Collagen Peptides | 10-15g daily | Moderate | Supports joint, skin, and gut health. Take with vitamin C for enhanced collagen synthesis. Best before bed or morning — timing flexible. |
Always consult your physician before starting any supplement regimen. Supplement based on blood work, not internet recommendations.
Your Protocol
Start with the foundation. Don't skip ahead — each level builds on the previous one.
Build these habits first. They solve 80% of nutrition problems.
Layer in once the foundation is solid (4-6 weeks).
For those optimizing body composition, performance, and longevity markers.
Common Questions
There's no single 'best' diet, but longevity research consistently points to: high vegetable and fruit intake, adequate protein (especially as you age), anti-inflammatory fats (omega-3, olive oil), minimal ultra-processed foods, and moderate caloric intake. The Mediterranean diet has the strongest epidemiological evidence. The Blue Zones research confirms: prioritize whole foods, eat until 80% full, and make meals social.
A 12-14 hour overnight fast (e.g., 8pm to 10am) is reasonable for most people and gives your digestive system a break. More extreme fasting protocols (16:8, 20:4, OMAD) may benefit some people but can also lead to under-eating protein, muscle loss, and hormonal disruption — especially in women. Prioritize adequate protein and nutrient intake over fasting windows.
For active adults: 1.6-2.2g per kg of body weight (roughly 0.7-1g per pound). For sedentary adults: at least 1.2g/kg. For older adults (50+): aim for the higher end to counteract age-related muscle loss (sarcopenia). Distribute evenly across 3-4 meals with at least 30g per meal to maximize muscle protein synthesis.
Industrial seed oils (soybean, canola, corn, sunflower) are very high in omega-6 fatty acids, which in excess promote inflammation. The modern Western diet has an omega-6 to omega-3 ratio of 15-20:1 (ideal is 2-4:1). Reducing seed oil intake and increasing omega-3s (fish, fish oil) is a practical way to reduce systemic inflammation. Cook with olive oil, butter, ghee, or coconut oil instead.
Food first, supplements second. That said, several nutrients are difficult to get from food alone in modern life: vitamin D (especially in northern latitudes), omega-3s (unless you eat fatty fish 3+ times per week), and magnesium (soil depletion has reduced levels in crops). These three form the 'foundation stack' we recommend for nearly everyone. Beyond that, supplement based on blood work, not guesswork.
Nutrition is deeply interconnected: carbs in the evening support serotonin production for sleep. Protein after training supports muscle recovery. Hydration and electrolytes are critical for sauna and cold therapy sessions. Gut health influences mental wellness through the gut-brain axis. Anti-inflammatory foods reduce the recovery demand from intense training. This is exactly why CryoCove integrates nutrition with all other pillars — they're not separate systems.
This guide gives you the science. A CryoCove coach gives you the personalization — analyzing your blood work, preferences, schedule, and goals to build a sustainable nutrition protocol that integrates with all 9 pillars.