About Lean30 — Our Mission, Science, and Team
Built by people who've been there
Lean30 was created by nutritionists and coaches who were tired of fad diets that worked for two weeks and failed for life. We built the program we wish we'd had.
Our mission
To make sustainable weight loss accessible to everyone — not just people with personal trainers, expensive meal kits, or hours to spend in the kitchen. Lean30 is built around real food, real schedules, and real results.
The science behind Lean30
Lean30 isn't a gimmick. Every element of the program is grounded in peer-reviewed research on sustainable fat loss.
Caloric deficit — done right
Lean30 targets a moderate 500–750 kcal daily deficit — enough to lose 1–1.5 lbs per week without triggering metabolic adaptation or muscle loss. Crash diets create a deficit so large the body compensates by slowing metabolism. We don't do that.
High protein to protect muscle
Every Lean30 meal plan hits 0.8–1g of protein per pound of body weight. Research consistently shows that high-protein diets preserve lean mass during weight loss, keep you fuller longer, and have a higher thermic effect — meaning your body burns more calories just digesting them.
Structured meal timing
Lean30 uses a consistent 3-meal structure with optional snacks, aligned with natural hunger rhythms. Studies show that irregular eating patterns increase cortisol, disrupt insulin sensitivity, and make adherence harder. Consistency is the secret weapon.
Whole foods, not supplements
The plan is built entirely around whole, minimally processed foods. No shakes, no pills, no proprietary blends. The research is clear: dietary patterns built on whole foods produce better long-term outcomes than supplement-dependent approaches.
The team
Sarah Mitchell, RDN
Co-founder & Lead Dietitian
Sarah spent a decade in clinical nutrition before co-founding Lean30. She's the architect of the meal plans and the science behind the macros.
Marcus Chen, CPT
Co-founder & Head Coach
Marcus built the coaching methodology and accountability system. He's personally coached over 400 members through their first 30 days.
Frequently asked questions
Still have questions? Talk to a coach.
Start your 30-day transformation
Free 1-week plan. No credit card. No catch.