WithJess Nutrition

Nutrition Made Simple

Professional nutritional coaching for performance & aesthetics.

About Us

Hi, I’m Jessica, a registered Sports Nutritionist and founder of WithJess Nutrition. As a HYROX competitor and hybrid athlete myself, I understand the importance of nutrition in supporting both performance and everyday life.

My approach is evidence-based and focused on building sustainable habits that create lasting results. Whether you’re preparing for a HYROX event, training for a running race, competing as part of a sports team, or looking to improve your health and achieve weight-loss goals, I provide practical, personalised nutrition support tailored to your lifestyle and objectives.

Based in Belfast, Northern Ireland, I offer both in-person consultations across the Belfast area and online coaching, helping clients wherever they are to fuel their performance, optimise their health, and reach their full potential.

Nutrition Coaching Plans

Cancel or pause anytime.

12 week nutrition coaching

£150 per month

  • Intial onboarding consultation & weekly check-ins.
  • Weekly structured nutrition plan.
  • Goal setting and implementation strategies.
  • 24/7 WhatsApp support.
  • Full access to support materials

Race fuelling strategy consultation

£45 one-off payment

  • Nutrition consultation to discuss fuelling strategies
  • Structured nutrition plan for race week.
  • Fuelling strategy for during the race.
  • 24/7 WhatsApp support.

General nutrition consultation

£35 one-off payment

  • 60 minute nutrition consultation.
  • Goal setting & implementation strategy.
  • Nutrition plan.

Group nutrition seminar

£60 one-off payment

Tailored nutritional seminar for athletes on:

  • Importance of macros & hydration
  • nutrient timing for performance
  • recovery & refuelling
  • any other topics you may require