Shorter days mean less sun, and less sun means less vitamin D. The Winter Wellness Duo pairs vitamin D3 with elderberry, vitamin C and zinc for a simple cold-weather routine. Here's what the research says about each.
Written by Vita Globe Editorial Team | Reviewed against peer-reviewed research and NIH guidance | Updated October 26, 2026
What supplements help in winter?
Vitamin D levels tend to drop in winter because your skin makes less of it with less sunlight, and vitamin D plays a role in normal immune function[1]. Vitamin C and zinc are both needed for normal immune function[2][3]. Elderberry is a traditional cold-season remedy with limited but interesting early research[4].
Sources: NIH Vitamin D · NIH Vitamin C · NIH Zinc · NCCIH Elderberry · Verified 2026-10-26
IN THIS ARTICLE
What's inside
- Vitamin D3 2,000 IU Gummies, 60ct: strawberry-flavored.
- Vegan Elderberry Gummies with Vitamin C & Zinc, 150mg, 60ct
Vitamin D and the winter dip
Your skin makes vitamin D from sunlight, and in much of the U.S., winter sun isn't strong enough for that from roughly November through February. People who spend most of their time indoors, older adults and people with darker skin are more likely to run low[1]. Vitamin D supports bones and normal immune function. More in Signs of Vitamin D Deficiency You Shouldn't Ignore.
Elderberry, vitamin C and zinc
Vitamin C and zinc are both needed for your immune system to work normally[2][3]. Elderberry has been used for colds and flu for generations. The NIH notes that some small studies suggest it may help with flu-like symptoms, but there isn't enough high-quality research to be sure[4]. For a deeper look, read Vitamin C, Zinc, and Vitamin D for Colds: What the Research Actually Shows.
The honest summary
- Vitamin D is the nutrient most likely to drop in winter.
- Vitamin C and zinc support normal immune function.
- Elderberry is traditional, with early evidence. No supplement prevents colds.
Our option
The Winter Wellness Duo
Vitamin D3 2,000 IU Gummies plus Vegan Elderberry Gummies with Vitamin C & Zinc. Two 60ct bottles, third-party tested.
Frequently asked questions
When should I start?
Fall is ideal, before the darkest months. Consistent daily use matters more than starting once you feel run down.
Can I take this with a multivitamin?
Usually, but add up your vitamin D and zinc. Adults shouldn't exceed 4,000 IU of vitamin D or 40mg of zinc a day without a doctor's guidance[1][3].
Who should check with a doctor first?
Anyone pregnant or nursing, with an autoimmune condition, or taking immunosuppressants or diabetes medication, since elderberry may affect them[4].
Sources
- National Institutes of Health, Office of Dietary Supplements. Vitamin D — Fact Sheet for Health Professionals. ods.od.nih.gov/factsheets/VitaminD-HealthProfessional
- National Institutes of Health, Office of Dietary Supplements. Vitamin C — Fact Sheet for Health Professionals. ods.od.nih.gov/factsheets/VitaminC-HealthProfessional
- National Institutes of Health, Office of Dietary Supplements. Zinc — Fact Sheet for Health Professionals. ods.od.nih.gov/factsheets/Zinc-HealthProfessional
- National Center for Complementary and Integrative Health. European Elder. nccih.nih.gov/health/european-elder
About the Vita Globe Editorial Team
The Vita Globe Editorial Team researches and writes our wellness content, working from peer-reviewed research, systematic reviews and guidance from bodies such as the NIH and the FDA. We cite our sources inline and update articles when the evidence changes.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is for informational purposes only and is not a substitute for medical advice. Talk to your healthcare provider before starting any new supplement, particularly if you are pregnant, nursing or taking medication.
