Smart Tools
Get personalized supplement and nutrition recommendations based on peer-reviewed research. Our tools use deterministic algorithms for consistent, reproducible results. No influencers, affiliate links, or hallucinations.
Paid Tools
Evidence-based analysis tools with personalized recommendations. One-time payment per analysis.
Smart Stack Builder
Personalized supplement schedule with timing, dosages, and interaction analysis based on your goals and health profile.
- ✓ Personalized supplement schedule
- ✓ Timing and bioavailability optimization
- ✓ Interaction warnings and synergies
- ✓ Evidence-based dosage recommendations
Smart Fuel
Personalized nutrition plan with macronutrient targets, meal timing, and micronutrient guidance based on your goals and preferences.
- ✓ Goal-specific macronutrient targets
- ✓ Meal timing optimization
- ✓ Dietary preference accommodation
- ✓ Micronutrient guidance
Micro + Macro Bundle
Complete nutrition optimization combining Smart Stack and Smart Fuel with integrated timing and synergy analysis.
- ✓ Both Smart Stack and Smart Fuel
- ✓ Integrated timing coordination
- ✓ Nutrient synergy optimization
- ✓ Complete micro and macro analysis
Free Calculators
Quick, evidence-based calculators for nutrition and fitness planning. No account required.
TDEE Calculator
Calculate your Total Daily Energy Expenditure to determine optimal calorie intake for your fitness goals.
BMR Calculator
Calculate your Basal Metabolic Rate to understand how many calories your body burns at rest for essential bodily functions.
Supplement Interaction Checker
Check for conflicts, synergies, and timing interactions between your supplements. Includes bioavailability analysis.
Supplement Timing Calculator
Look up the optimal timing for any supplement. Find out when to take it, whether it needs food, and how to maximize absorption.
Macro Calculator
Calculate optimal protein, carbs, and fats based on your goals and activity level.
Body Fat Calculator
Estimate body fat percentage using multiple measurement methods.
One Rep Max Calculator
Calculate your estimated one rep max for strength training programming.
BMI Calculator
Calculate Body Mass Index with context about its limitations and proper use.
Wilks Score Calculator
Compare powerlifting performance across weight classes and genders.
How Smart Tools Work
Simple process for generating personalized analysis with our premium tools.
1. Information
Provide information about your goals, data, and preferences.
2. Complete Payment
One-time payment via secure checkout to generate your analysis.
3. Results
Receive personalized recommendations that maximize bioavailability with timing, dosages, and explanations.
4. Utilize
Save your results and/or download a PDF of your results.
Why Choose Sighed Effects Tools
We built these tools differently—prioritizing research integrity over monetization.
No Affiliate Links or Brand Recommendations
We don't recommend specific brands or products. Smart Stack focuses on ingredients and timing—you choose which brands to buy based on your budget and quality preferences. No commission-driven recommendations. Our recommendations include explanations and citations. We prioritize supplements with strong evidence from systematic reviews and meta-analyses, not theoretical benefits or industry marketing claims.
Research-Based Algorithms, Not AI Generation
Our tools use deterministic algorithms built from peer-reviewed research on bioavailability, interactions, and timing. Every recommendation follows established clinical data—not language model predictions. Consistent, reproducible results based on science. No hallucination concerns.
Save Your Results with a Free Account
Create a free member account to save your analysis results, track your progress, and access your recommendations anytime.
No credit card required • Access your results anywhere • Free forever