Why Seazenal® Nutrition Matters
As humans, we are not separate from nature, we are part of it. Just like the tides, trees, and migratory animals, our bodies respond to seasonal changes in light, temperature, environment and nutrients available. These shifts affect our mood, metabolism, immune function, energy levels, and even the way our skin behaves (1-4). Modern life has distanced us from nature’s rhythms. Artificial lighting, indoor living, and climate control mask the signals that once guided our biology (5). Yet, our bodies remain sensitive to seasonal cues, whether it’s the boost of energy that comes with longer spring days or the sluggishness that often accompanies the dark, cold depths of winter.
Summer
- Increased UV exposure → higher risk of oxidative stress and skin damage.
- Higher physical activity levels → increased demand for hydration, electrolytes, and recovery nutrients.
- Potential for heat stress and fatigue due to high temperatures.
- Allergen exposure (e.g. pollen) can exacerbate respiratory issues or inflammation.
Autumn
As sunlight decreases, the body’s natural production of vitamin D begins to decline. This reduction, combined with shorter daylight hours, can contribute to shifts in mood, partly due to lower serotonin levels associated with reduced light exposure.
Winter
- Vitamin D synthesis drops in autumn and winter due to reduced sunlight exposure.
- Mood and mental wellbeing. Reduced sunlight in autumn and winter can lead to lower natural vitamin D synthesis, which has been linked to symptoms of low mood and Seasonal Affective Disorder (SAD).
- Immune response, which fluctuates throughout the year, often dipping during colder months.
Spring
Often marks the peak of seasonal allergies, leading to elevated histamine levels and increased oxidative stress.
The spring season often places added pressure on the body’s immune and antioxidant systems, making it essential to support them through nutrition, lifestyle choices, and in some cases, targeted supplementation
Our Seasonal Approach
Seazenal® was created to support the body’s shifting physiological needs throughout the year. Each season’s formula reflects both traditional wisdom and scientific research, from antioxidants in summer to immune nutrients in winter.
Each blend contains over 20 nutrients and botanicals, with carefully varied dosages in each formula, to address the body’s most relevant health priorities for every season.
What goes into our formulas
Meet the Nutrients & Botanicals
Astaxanthin
✔ A lipid-soluble carotenoid with antioxidant properties
✔ Popular in wellness routines focused on environmental stress support
Found in: Autumn Balance
Beta-carotene
as Vitamin A Contributes to:
✔ the maintenance of normal vision
✔ the normal function of the immune system
✔ the maintenance of normal skin
Found in: All Seazenal® lines
Biotin
Contributes to:
✔ normal energy-yielding metabolism
✔ the maintenance of normal skin and hair
Found in: All Seazenal® lines
Chromium
Contributes to :
✔ the maintenance of normal blood glucose levels
✔ normal macronutrient metabolism
Found in: All Seazenal® lines
CoEnzyme Q10
✔ Coenzyme Q10 is a naturally occurring compound found in the body’s cells, particularly in energy-intensive organs such as the heart and muscles.
✔ CoQ10 is a naturally occurring antioxidant
Found in: Summer Essentials
Folate
Contributes to :
✔ the reduction of tiredness and fatigue
✔ the normal function of the immune system
✔ normal blood formation
Found in: All Seazenal® lines
Glutathione
✔A a naturally occurring antioxidant found in the body.
✔Produced naturally in the liver and present in nearly all body cells.
Found in: Winter Defence
Iron
Contributes to:
✔ normal cognitive function
✔ normal formation of red blood cells and haemoglobin
✔ normal energy yielding metabolism
✔ the reduction of tiredness and fatigue
✔ the normal function of the immune system
Found in: All Seazenal® lines
Iodine
Contributes to:
✔ the normal production of thyroid hormones and normal thyroid function
✔ the maintenance of normal skin
✔ normal cognitive function
✔ normal functioning of the nervous system
✔ normal energy yielding metabolism
Found in: All Seazenal® lines
Magnesium Stearate
Contributes to:
✔ electrolyte balance
✔ to a reduction of tiredness and fatigue
✔ normal psychological function
✔ normal function of muscle & the nervous system
✔ normal energy yielding metabolism
✔ the maintenance of normal bones and teeth
✔ the normal formation of connective tissue
✔the protection of cells from oxidative stress
✔ the maintenance of normal skin
Found in: All Seazenal® lines
Moringa
✔ Moringa is a naturally nutrient-rich botanical known for its traditional use in wellness practices and valued for its natural composition of vitamins.
Found in: Spring Renewal
Selenium
Contributes to:
✔ the maintenance of normal hair and nails
✔ normal thyroid function
✔ the normal function of the immune system
✔ to the protection of cells from oxidative stress
✔ to normal sperm production.
Found in: All Seazenal® lines
Vitamin B1 (Thiamine)
Contributes to:
✔ the normal function of the heart and nervous system
✔ normal energy yielding metabolism
✔ to normal psychological function
Found in: All Seazenal® lines
Vitamin B2 (Riboflavin)
Contributes to:
✔ normal energy-yielding metabolism
✔ the reduction of tiredness and fatigue
✔ he maintenance of normal skin and vision
Found in: All Seazenal® lines
Vitamin B3 (Niacin)
Contributes to:
✔ the maintenance of normal mucous membranes
✔ normal psychological function
✔ normal functioning of the nervous system
✔ normal energy yielding metabolism
✔ to the reduction of tiredness and fatigue
Found in: All Seazenal® lines
Vitamin B5 (Pantothenic acid)
Contributes to:
✔ normal synthesis and metabolism of several neurotransmitters
✔to normal mental performance
✔ to normal energy yielding metabolism
✔ to the reduction of tiredness and fatigue
Found in: All Seazenal® lines
Vitamin B6 (pyridoxine)
Contributes to:
✔ the regulation of hormonal activity
✔ normal protein and glycogen metabolism
✔ normal psychological function
✔ normal energy yielding metabolism
✔ to normal functioning of the nervous system
✔ the reduction of tiredness and fatigue
✔ normal red blood cell formation
✔ the normal function of the immune system
✔ normal cysteine synthesis
✔ normal homocysteine metabolism
Found in: All Seazenal® lines
Vitamin B12 (Cobalamin)
Contributes to:
✔ normal energy yielding metabolism
✔ the reduction of tiredness and fatigue
✔ normal functioning of the nervous system
✔ normal psychological function
✔ normal red blood cell formation
✔ the normal function of the immune system
Found in: All Seazenal® lines
Vitamin C
Contributes to:
✔ normal collagen formation for the normal function of blood vessels, bones, teeth, cartilage, gumss & skin
✔ normal functioning of the nervous system
✔ normal psychological function
✔normal energy yielding metabolism
✔ the reduction of tiredness and fatigue
✔ the normal function of the immune system
✔ the protection of cells from oxidative stress
Found in: All Seazenal® lines
Vitamin D3
Contributes to:
✔ the maintenance of normal muscle function
✔normal absorption and utilisation of calcium and phosphorus
✔ normal blood calcium levels
✔ the maintenance of normal bones
✔the maintenance of normal teeth
✔ the normal function of the immune system
Found in: All Seazenal® lines
Vitamin E
✔ Contributes to the protection of cells from oxidative stress
Found in: All Seazenal® lines
Vitamin K2
Contributes to:
✔ Normal blood clotting
✔ The maintenance of normal bones
Found in: All Seazenal® lines
Zinc
Contributes to:
✔the maintenance of normal skin, hair and nails.
✔ normal cognitive function
✔ normal macronutrient, fatty acids & carbohydrate metabolism
✔ the maintenance of normal testosterone levels in the blood
✔ to the maintenance of normal vision
✔ to the normal function of the immune system
✔to the maintenance of normal bones
✔ to the protection of cells from oxidative stress
✔ normal fertility and reproduction
✔ normal DNA synthesis
Found in: All Seazenal® lines
Helpful NHS Resources
References
1) Diffey BL. Modelling the seasonal variation of vitamin D due to sun exposure.Br J Dermatol. 2010;162(6):1342-1348. doi:10.1111/j.1365-2133.2010.09697.x
2) Jonathan J Neville, Tommaso Palmieri, Antony R Young, Physical Determinants of Vitamin D Photosynthesis: A Review,JBMR Plus, Volume 5, Issue 1, 1 January 2021, e10460,
3) Ter Horst R, Jaeger M, van de Wijer L, et al. Seasonal and Nonseasonal Longitudinal Variation of Immune Function.J Immunol. 2021;207(2):696-708. doi:10.4049/jimmunol.2000133
4) Jiang W, Wang J, Zhang H, et al. Seasonal changes in the physiological features of healthy and sensitive skin.J Cosmet Dermatol. 2022;21(6):2581-2589. doi:10.1111/jocd.14476
5)Cho Y, Ryu SH, Lee BR, Kim KH, Lee E, Choi J. Effects of artificial light at night on human health: A literature review of observational and experimental studies applied to exposure assessment.Chronobiol Int. 2015;32(9):1294-1310. doi:10.3109/07420528.2015.1073158