Subjective Feelings Trial

One Huel product each day (breakfast) for 6 weeks with a 5-point Likert scale, ranging from 'strongly agree' to 'strongly disagree.'

Summary

In a six-week perception study, participants who consumed Huel Black Edition daily reported improvements in overall well-being, daily routine, energy, and reduced snacking. Most participants reported feeling healthier and more in control of their day, with fewer snacks and higher energy by week six.

Key information

Trial title: Consumer Perception Study of Huel Black Edition Powder

Partner: Citrus Labs

Design: Six-week single-arm self-reported study, daily breakfast with Huel Black Edition Powder and answered questions on a 5-point Likert scale from ‘strongly agree’ to ‘strongly disagree’.

Goal: Assess participant-reported changes in energy, well-being, and daily habits.

Outcome 

Participants reported improvements in overall well-being, increased energy, reduced snacking, and better daily routine management. Improved energy, reduced snacking, and higher self-reported well-being.

Findings

• 89% found Huel easy to fit into their day

• 84% felt full until lunch* after a Huel breakfast

• 76% agreed they snacked less throughout the day

• 75% said having Huel made them more productive

• 78% said Huel was more convenient than their usual breakfast

• 77% would recommend Huel to a friend

Takeaway

Huel isn’t just food for your body, it’s fuel for your day. Most people felt more energized, in control, and balanced after six weeks, showing that convenience and wellness can go hand in hand.

All Huel studies were conducted with independent academic or clinical research partners. One trial was fully independent (Newcastle University), while three trials were conducted by independent organisations with Huel funding. Designs include randomized crossover trials, a peer-reviewed pre-/post-intervention, and consumer perception research. Some findings are published (including Frontiers in Nutrition, 2022); others are under academic review.

These results are based on an independent, single-arm perception study conducted by Citrus Labs in 2025 with 100 healthy adults aged 18–65 in the United States, which assessed the self-perceived impact of daily consumption of one serving of Huel Black Edition (Chocolate) over 6 weeks on participant health and well-being.

*Could be related to Huel Black Edition being high in protein and fiber, contributing to feelings of fullness.