No Sugar CHALLENGE

For 30 days avoid all products containing refined sugars or artificial sweeteners

Study RESULTS

The study involved participants engaging in No Sugar Challenge 30 days. Data was self-reported, using a Likert scale from 1 (strongly disagree) to 7 (strongly agree) across various health and psychological metrics. The analysis includes both quantitative data and qualitative based on responses from 393 participants. Since the goal of the study is to measure the impact of doing a certain activity for a month quantitative data is presented for participants with high adherence rates (90%+ challenge completion).

Physical Health Impact
Based on data from participants who completed 90%+ of the Challenge
Strongly Disagree
Disagree
Somewhat Disagree
Neutral
Somewhat Agree
Agree
Strongly Agree
Physical Health Improvement
I feel my overall physical health has improved as a result of doing this challenge.
avg: 5.5
Energy Levels
I feel I have more energy throughout the day.
avg: 5.1
Fitness Improvement
My overall physical fitness level has improved as a result of doing this challenge.
avg: 4.8
Endurance Improvement
My physical endurance has improved because of this challenge.
avg: 4.6
Flexibility Improvement
My flexibility or mobility has increased.
avg: 4.2
Pain Reduction
I have experienced less physical pain or discomfort.
avg: 4.5
Strength Improvement
I feel physically stronger as a result of doing this challenge.
avg: 4.5
Sleep Improvement
My sleep quality has improved.
avg: 4.6
Mental Health Impact
Based on data from participants who completed 90%+ of the Challenge
Strongly Disagree
Disagree
Somewhat Disagree
Neutral
Somewhat Agree
Agree
Strongly Agree
Mood Improvement
I have experienced a more positive mood during this challenge.
avg: 5.1
Calm and Relaxation
I feel a greater sense of calm and relaxation during this challenge.
avg: 4.9
Concentration Improvement
My concentration or focus has improved.
avg: 4.9
Stress Reduction
I have noticed a reduction in feelings of stress or anxiety during this challenge
avg: 4.6
Difficulty
Based on data from all participants
Strongly Disagree
Disagree
Somewhat Disagree
Neutral
Somewhat Agree
Agree
Strongly Agree
Challenge Enjoyment
The challenge was fun for me to do.
avg: 5.1
Difficulty as Daily Routine
It would be hard to make this challenge a part of my daily routine
avg: 3.3
Resource Consumption
The challenge was time & resource consuming.
avg: 2.7
Adverse events
I had adverse events that I directly link to doing this activity (sickness, injury etc).
avg: 2.6
Plan to Continue
I plan to continue this practice beyond the challenge.
avg: 5.7

Qualitative Findings

Most Common and Interesting Beneficial Findings

- Weight Loss and Physical Health Gains (most frequent, ~45% of responses): Many highlighted unintended weight reduction (e.g., "lost 5-6lbs," "4.5kg weight loss," "I lost 8lbs") as a primary benefit, often linked to reduced bloating, better skin, and increased energy. Interesting nuance: Several noted this occurred without explicit calorie restriction, attributing it to mindful eating (e.g., "less liquid retention," "body fat % dropped from 35 to 19").

- Reduced Cravings and Discipline (∼40%): Participants frequently cited breaking sugar addiction (e.g., "not be addicted to sugar so much," "less sugar cravings," "I don't need sugar!"). This fostered self-discipline and empowerment (e.g., "self discipline," "testing my willpower," "proving myself I could do it"), with some describing it as a "cycle breaker" for emotional eating.

- Mental and Emotional Improvements (∼35%): Enhanced mood, calm, and stress reduction were common (e.g., "mental health benefits- reduced anxiety," "better mood when I wake up," "clarity of mind"). Intriguingly, perimenopausal women reported specific relief (e.g., "no night sweats, better skin").

- Awareness of Hidden Sugars (∼30%): A recurring theme was label-reading education (e.g., "awareness of sugar in a lot of foods," "reading ingredients and learning that a lot snacks contained sugar," "gained knowledge about how many shelf products got added sugar in"). This led to broader dietary shifts, like increased fruit consumption.

- Other Notable Benefits: Savings (e.g., "saving money on snacks"), social aspects (e.g., "doing it together with my son"), and sustainability (e.g., "I plan to continue this practice") were less common but interesting for their practical implications.

Most Common and Interesting Extraordinary Experiences or Discoveries

- Easier Than Expected and Craving Fade-Out (most frequent, ∼50%): Many were surprised by the challenge's feasibility (e.g., "it was easier than I expected," "after 2 weeks, sugar cravings decrease," "the hardest part was 12-15 days... after that it became a lot easier"). Discoveries included realizing sugar's addictive nature (e.g., "sugar is a drug... during the first week I really feel like an addict").

- Unexpected Health Revelations (∼40%): Participants shared novel insights, such as sugar's link to pain or inflammation (e.g., "my shoulder pain was due to sugar," "less headaches," "improved my eye sight"). Others noted withdrawal symptoms fading (e.g., "headaches and brain fog the first two weeks," "I had withdrawals the first 2 days…headache").

- Emotional and Behavioral Insights (∼30%): Stress-eating patterns emerged (e.g., "I realized that I heavily relied on sugar in highly stressful times," "cravings for sweets are emotional/come from poor planning"). Positive surprises included better self-trust (e.g., "hunger cravings go away and I can be trusted having sugary things in the house").

- Lifestyle Discoveries (∼25%): Hidden sugars shocked many (e.g., "sugar is basically in everything, even food you wouldn't expect," "I was amazed at how prevalent... sugar and HFCS is"). Creative adaptations were interesting (e.g., "discovered my friends and family were intrigued... and liked to follow my daily posts," "life without added sugar can still be sweet... with fruits and vegetables").

- Other Intriguing Narratives: Rare but compelling were cultural or personal twists (e.g., "obwohl ich mich mit Ernährung generell beschäftige... wurde mir... bewusst, wo überall Zucker... enthalten sind!" [German for awareness of hidden sugars]), and failures-turned-lessons (e.g., "this challenge hurt me more than was beneficial... I now know I should not be doing eating challenges").

Overall, the qualitative data paints a vivid picture of empowerment and revelation, complementing quantitative gains. Themes of resilience and awareness dominate, suggesting the challenge's value extends beyond physiology to psychological growth. As with any self-reported study, responses may reflect confirmation bias, but the consistency across adherence levels strengthens these insights. Future research could employ mixed-methods designs to quantify theme prevalence more rigorously.

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Karol Banaszkiewicz, our founder, is a seasoned technologist and lifelong health-hacker who noticed a glaring gap in how we track the real effects of daily routines. Driven by a passion for data-backed self-improvement, he committed his own time and resources to launching TheChallenge.Org—to rigorously measure how habits shape our physical and mental well-being.
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