Author
Sara Greenfield, MS, RD
Editor & Lead Dietitian
Sara Greenfield is a Registered Dietitian who has spent the last seven years specialising in plant-based clinical nutrition. Plant Based Macro Log is the editorial home for the work she had previously been doing as one-off handouts for clients: app reviews from a plant-based clinical lens, nutrient-by-nutrient deep dives on the points where plant-based diets need attention, and the database-coverage audits that explain why the same food can show up in five different tracker databases with five different micronutrient profiles.
Areas
- Plant-based clinical nutrition
- Vitamin B12 and iron status assessment
- Plant-protein adequacy
- Nutrient-database evaluation
Recent work
- Diet styles
Orthorexia and the Plant-Based Tracker: When Clean Eating Becomes Compulsive
- Plant databases
USDA FoodData Central plant-foods coverage: what it has and what it lacks
- Plant databases
Nutritional yeast database coverage: fortified vs unfortified across major brands
- Plant databases
Mock-meat database coverage: Beyond, Impossible, Field Roast, Tofurky, Lightlife
- Plant databases
Plant milk database audit: 12 brands across five tracker apps
- Plant databases
Tofu and tempeh database coverage: comparing five tracking apps on plant-protein staples
- Diet styles
Vegan athletic nutrition: protein, iron, B12, recovery, and the supplements that earn their place
- App reviews
The best vegan calorie and macro tracker in 2026: a head-to-head comparison
- Research
Dietary app validation evidence on plant-based meals: what the literature shows
- Nutrient focus
Iodine on plant-based diets: the overlooked mineral and how to track it
- App reviews
PlateLens for plant-based eaters: a clinical review
- Nutrient focus
Vitamin D on plant-based diets: D2 vs D3, lichen-derived vegan D3, and supplementation
- Nutrient focus
Calcium without dairy: fortified plant milks, calcium-set tofu, and the leafy-green caveat
- App reviews
MyFitnessPal for plant-based eaters: an honest critique
- App reviews
Cronometer for plant-based eaters: the long-time vegan favorite, reviewed
- Nutrient focus
Iron on plant-based diets: heme vs non-heme, bioavailability, and the vitamin C synergy
- Nutrient focus
Vitamin B12 on plant-based diets: sources, supplementation, and what apps actually track