01Top Picks on Our Shelves
- Vitamin D3 softgels, 1,000 IU — a solid everyday dose for most adults in an easy-to-swallow capsule.
- Vitamin D3 softgels, 5,000 IU — for those whose doctor has recommended a higher daily amount.
- Liquid vitamin D3 drops — drops make it simple to adjust your dose or add to a drink; great for anyone who dislikes pills.
- Kids' vitamin D3 gummies — a fruit-flavored gummy option in kid-appropriate doses they'll actually take.
- Vitamin D3 + omega-3 combination softgels — for people who want both nutrients in a single daily softgel.
Frequently Asked Questions
How much vitamin D should I take?
It depends on your age, sun exposure, and blood levels. The NIH sets the recommended daily allowance at 600 IU for most adults (800 IU over age 70), but many people take 1,000–2,000 IU daily, especially in winter. The best move is to ask your doctor for a blood test — about 35% of U.S. adults have vitamin D levels below what's considered adequate, according to CDC nutrition survey data. Our staff can help you compare label doses once you know your target.
What's the difference between vitamin D2 and D3?
D3 (cholecalciferol) is the form your skin makes from sunlight, and most research suggests it raises blood levels more effectively than D2 (ergocalciferol, usually plant-derived). Nearly everything on our shelves is D3. D2 is still an option for strict vegans who avoid lanolin-sourced D3.
Should I take vitamin D with food?
Yes — vitamin D is fat-soluble, so taking it with a meal that contains some fat helps your body absorb it. Morning with breakfast works well for most people.
Can I get enough vitamin D from the sun in the Bay Area?
Some of the year, maybe — but Richmond's marine layer, sunscreen use, indoor work, and darker skin tones all reduce production. That's why deficiency is common even in sunny California. A supplement is a reliable way to fill the gap.
Is it possible to take too much vitamin D?
Yes. Very high doses over time can cause calcium buildup in the blood. Staying at or below 4,000 IU daily (the NIH's tolerable upper limit for adults) is considered safe for most people, but check with your healthcare provider before taking high-dose products long term.
Do kids need vitamin D supplements?
The American Academy of Pediatrics recommends 400 IU daily for infants and children who don't get enough from diet and sun. We carry children's drops and gummies — ask our staff for help picking the right form and dose for your child's age.
Does vitamin D help with anything besides bones?
Vitamin D also plays a role in immune function and muscle health, which is part of why so many people take it through the winter. Research is still evolving on other potential benefits, but the bone-health case alone makes it one of the most worthwhile supplements for most adults.
02Visit Us
Come by William's Natural Foods, 12249 San Pablo Ave, Richmond — we're open Mon–Fri 9–7, Sat 9–6, Sun 10–5. Our staff can help you compare D3 options and find the right strength for your needs. Call us at (510) 232-1911 with questions.
Still Have Questions? Come Talk to Us In Store
The fastest way to get answers is to talk it through in person. Here's how:
This guide is for general information only and isn't medical advice. Talk to your healthcare provider about the right dose for you. These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.