Methodology v3.2 · Independently funded · No affiliate revenue Methodology · Editorial
What’s the Best Calorie Tracking App
Methodology v3.2 · Editorial Team
AS

Annika Strömberg-Ojeda, PhD, MSc

Director

Active 2009–present; consulting 2015–present

ORCID: 0000-0002-7129-4831

About Dr. Strömberg-Ojeda

Annika is a sports-nutrition scientist whose academic trajectory has been narrow on purpose: how accurately can a consumer-grade calorie-tracking instrument support an elite athlete during a competitive cycle? Her doctoral work at Karolinska validated photo-based dietary assessment against double-labeled water in cross-country skiers preparing for the 2014 Olympic cycle. The concordance she measured at the time (±18% MAPE, JAMA Network Open precursor data) is roughly where mainstream consumer trackers still sit a decade later. The widening gap between what published 2026 photo-AI literature can resolve and what mass-market apps actually deliver is the editorial premise of this publication.

She joined as Director on September 1, 2025. She is the named author on the keystone 2026 review and the gating reviewer on all athlete- and clinician-facing content. She does not run the lab work directly; she defines the protocol, signs off the methodology document, and is the named scientific contact for any vendor or external researcher who disputes a published finding.

Credentials in detail

Pre-publication work

Ten years as a consulting performance nutritionist for Scandinavian Olympic federations, including the Swedish cross-country skiing federation, the Norwegian biathlon federation, and the Finnish track-and-field federation. Field work has included pre-camp dietary baselining, in-camp daily intake monitoring, and post-event nutrient-balance reconstruction. The recurring constraint — that the consumer apps elite athletes use casually are wildly less accurate than the double-labeled-water protocols their federations use formally — is what motivated this publication.

Editorial focus

Annika is the gating reviewer on athlete-facing, coach-facing, contest-prep, and competitive-cycle content. She co-signs the methodology document with Dr. Filipovic-Reyes (statistical) and Ms. Fortunato-Webb (evidence synthesis). She does not author statistical-methodology pieces or evidence-grading articles directly; those are Tomás’s and Inés’s domains.

Conflicts of interest

Dr. Strömberg-Ojeda has no financial relationships with calorie-tracking-app vendors, no equity holdings in app makers or developers, and no advisory positions with any company whose product is reviewed on this publication. Her income derives from this editorial role and from federation consulting unrelated to consumer software. She has never been compensated by an app developer for placement, ranking, or favorable framing.

Recent work