16:8 Fasting Does More Than Burn Fat — It Rewires Your Brain and Fights Inflammation

Science-Backed Benefits of Timed-Restricted Eating — and Why It’s Easier Than You Think

If you have wanted to try fasting but the idea seems too overwhelming, adopting a 16:8 time-restricted eating plan may be a better fit. Limiting your food intake to an eight-hour window for many is a manageable approach to reaping the benefits of fasting — including improving cognitive and neurological health, reducing inflammation, and improving metabolic function. Sounds too good to be true? Have a look at the following studies that found intermittent fasting (IF) to be a simple method for improving overall health and quality of life, not to mention helping to shed those extra pounds.

Less Inflammation, Improved MS Symptoms. A 2023 randomized controlled trial discovered that a 16:8 time-restricted feeding protocol for 8 weeks significantly reduced neuroinflammatory markers and improved fatigue, sleep quality, and overall health status in patients with relapsing-remitting MS.¹

Protects Against Neurological Disease. Intermittent fasting was found to support brain synaptic integrity, reduce toxic protein load, and encourage glial and immune homeostasis in Alzheimer’s, Parkinson’s, Huntington’s, and ALS.² Another study also established that during fasting periods, cells undergo autophagy — a process where damaged cellular debris is removed or recycled, which is essential for maintaining proper cellular function and to protect the brain from age-related degeneration and neurodegenerative diseases.³

Better Cognitive Function and Mental Health. Time-restricted eating may have a positive impact on cognitive function and mental health in older adults as well, according to a 2024 systematic review published in the journal Preventive Medicine Reports.⁴ IF was also shown to have a positive effect on the gut-brain axis through improvements in the gut microbiota and lower inflammation, which in turn reduced symptoms of anxiety and depression.⁸ A 2023 study also found this to be true. The research team established that time-restricted eating improved depression scores, along with meaningful weight loss.⁹

Metabolic Benefit. In animal trials, time-restricted eating reduced body mass, total cholesterol, triglycerides, glucose, insulin, and key inflammatory markers IL-6 and TNF-α, thereby improving overall metabolic health.⁵ Likewise, a comprehensive review of studies spanning from 2004–2024 found that IF consistently improves insulin sensitivity, lipid profiles, and body composition by promoting fat oxidation, while maintaining lean mass. The practice also activates autophagy, which reduces oxidative stress and inflammation — two key contributors to aging and chronic disease.⁶ Additionally, an umbrella review covering 23 meta-analyses and 351 associations found consistent metabolic benefits of IF across healthy adults and individuals who were overweight, obese, prediabetic, type 2 diabetic, or had metabolic syndrome.⁷

Action Steps: Getting Started With Intermittent Fasting

The simplest way to begin is to choose an eating window that fits your lifestyle. Popular options are 8 AM–4 PM or
10 AM–6 PM. During fasting hours, stick to water, black coffee, or plain tea. See here for more information on the benefits of eating earlier.

Common Mistakes to Avoid

• Overeating or bingeing during your eating window
• Breaking your fast with high-sugar or ultra-processed foods
• Not drinking enough water throughout the day
• Jumping straight into 16:8 without gradually increasing your fasting window

Who Should Approach IF With Caution

While 16:8 is considered safe for most healthy adults, certain people should consult their healthcare provider before starting. This includes pregnant or breastfeeding women, those with a history of eating disorders, people managing diabetes or blood sugar conditions, and anyone taking medications that require food.

Sample Intermittent Fasting Schedule

8:00 AM — Break your fast with a balanced, protein-rich breakfast
1:00 AM — For lunch, focus on high-fiber, whole foods — this post provides inspiration.
3:30 PM — Healthy, protein-based meal or snack
4:00 PM — Eating window closes and fasting begins; water, black coffee, or plain tea only

Supercharge Your 16:8 Results With These Four Brain-Boosting Botanicals

For even greater results, consider pairing your 16:8 practice with our Brain Bundle — it includes four powerful botanicals that complement the brain-boosting and anti-inflammatory effects of intermittent fasting. These include Cordyceps, Lion’s Mane, Reishi, and Lemon Balm.

Cordyceps delivers impressive multi-system support, enhancing athletic performance, balancing blood sugar by mimicking insulin activity, protecting cardiovascular health, and showing promising potential in inhibiting cancer cell growth and viral replication. Lion’s Mane is the ultimate brain mushroom, stimulating the growth of new brain cells, encouraging Nerve Growth Factor to repair damaged neural pathways, and helping to reduce symptoms associated with Alzheimer’s, dementia, and Parkinson’s — while supporting better sleep, mood, and energy. Reishi acts as a shield against stress, while helping to suppress inflammatory compounds, regulate cortisol, support gut health, improve sleep quality, and enhance liver function. Lemon Balm calms the nervous system by encouraging GABA production, protects against oxidative stress, supports healthy blood sugar and lipid metabolism, and offers relief from anxiety, depression, and ADHD.

If you are ready to think more clearly, feel calmer, and perform at your best, our Brain Bundle is your next step — shop now and experience the difference our gold-standard formulations can make.

Purchase Here

Nicole Apelian

Nicole’s Apothecary Products in this Post

References

1. Zhao, Ziqian et al. “Effects of intermittent fasting on brain health via the gut-brain axis.” Frontiers in nutrition vol. 12 1696733. 21 Nov. 2025, doi:10.3389/fnut.2025.1696733
2. Hein, Z. M., Arbain, M. F. F., Kumar, S., Mehat, M. Z., Hamid, H. A., Che Ramli, M. D., & Che Mohd Nassir, C. M. N. (2025). Intermittent Fasting as a Neuroprotective Strategy: Gut–Brain Axis Modulation and Metabolic Reprogramming in Neurodegenerative Disorders. Nutrients, 17(14), 2266. https://doi.org/10.3390/nu17142266
3. “Is intermittent fasting the secret to better brain health?” by Baylor Scott and White Health, Apr 12, 2023. https://www.bswhealth.com/blog/intermittent-fasting-brain-health
4. Sharifi, Sina et al. “Effect of time-restricted eating and intermittent fasting on cognitive function and mental health in older adults: A systematic review.” Preventive medicine reports vol. 42 102757. 9 May. 2024, doi:10.1016/j.pmedr.2024.102757
5. Soykurt SÇ, Tekdemir SN. Intermittent Fasting and Its Potential Effects on Health. Cyprus J Med Sci. 2024;9(4):221-227. doi:10.4274/cjms.2024.2023-109
6. Samkari, J. Intermittent fasting: a comprehensive review of cellular mechanisms, metabolic processes, and organ health. J. Umm Al-Qura Univ. Med. Sci. 11, 7 (2025). https://doi.org/10.1007/s44361-025-00007-z
7. Ming-Li Sun, Wei Yao, Xiao-Ying Wang, Song Gao, Krista A. Varady, Sofia K. Forslund, Miao Zhang, Zan-Yu Shi, Fan Cao, Bing-Jie Zou, Ming-Hui Sun, Ke-Xin Liu, Qi Bao, Jin Xu, Xue Qin, Qian Xiao, Lang Wu, Yu-Hong Zhao, De-Yu Zhang, Qi-Jun Wu, Ting-Ting Gong,
   Intermittent fasting and health outcomes: an umbrella review of systematic reviews and meta-analyses of randomised controlled trials,
   eClinicalMedicine, 2024. https://doi.org/10.1016/j.eclinm.2024.102519.
8. Rabiei, Samira. “The Association of Different Types of Intermittent Fasting with Mental Health: A Protocol for Systematic Review.” International journal of preventive medicine vol. 16 43. 30 Jul. 2025, doi:10.4103/ijpvm.ijpvm_312_24
9. Bonaccorsi, Vincenzo, and Vincenzo Maria Romeo. “Psychological and Psychiatric Consequences of Prolonged Fasting: Neurobiological, Clinical, and Therapeutic Perspectives.” Nutrientsvol. 18,1 60. 24 Dec. 2025, doi:10.3390/nu18010060