Registered dietitian review
Cayla Bousaba, RDN, LDN, independently reviewed specific Nutrition.io calculations, tools and guides on October 7, 2026.
The reviewer
Commission on Dietetic Registration (CDR) #86087622. Gut health, autoimmune disorders, and weight maintenance. Reviewer practice website. CDR credential verification.
She is an independent reviewer, not an author or employee. Articles remain written by the Nutrition.io Editorial Team. This review is not an endorsement of the app as a whole.
Exact scope
- Approved: Metabolic engine: energy (resting metabolic rate, activity multipliers, deficit/surplus caps, safety floors)
- Approved: Metabolic engine: macros (protein basis incl. adjusted weight, fat range, carbohydrate remainder, guards)
- Approved with changes noted: Metabolic engine: fibre, fluid, meal count, per-meal protein threshold — Fibre should never fall below the adequate intake of 25 g/day for women and 38 g/day for men, regardless of calorie target, and should be spread across meals. Applied: the engine now uses whichever is higher.
- Approved: Metabolic engine: caveats shown to the user
- Approved: Levothyroxine timing: all 21 intervals, merge rule and evidence labels
- Approved: Hashimoto's content spot-checks (pages listed below, and the 27-food checker table)
- Not reviewed: Benchmark methodology page (accuracy disclosure)
- Approved: Permission to be named, with credentials as written, on the items approved
Reviewed guides
- Hashimoto's Foods to Avoid: Full List
- Best Supplements for Hashimoto's: Selenium, Zinc, Vitamin D & More
- Hashimoto's Diet Plan: 7-Day Menu + Food List
- Hashimoto's 14-Day Meal Plan
- Hashimoto's 7-Day Meal Plan (Free Printable)
- SIBO Diet Food List + 7-Day Meal Plan
Reviewed tools
Metabolic calculation logic
Mifflin–St Jeor resting-energy estimates, activity factors, bounded energy and macronutrient targets, fibre, fluid and per-meal guidance with safety floors and caveats. Educational estimates, not a measurement of metabolism or diagnosis.
Prefer whole-food sources of protein and fibre over powders, bars and supplements such as fibre gummies.
Exact formulas, thresholds, worked examples and signed review (PDF)The signed document
The full review pack and signed sign-off sheet are published unedited with her permission.
What this review is not
Only named items as they read on October 7, 2026 are covered, not future changes or individual generated reports. The benchmark methodology page was not reviewed. This is not personal medical advice, a diagnosis or a guarantee of results.