As someone who spends most days indoors, I started taking Pronto's Vitamin D3 capsules after a blood test revealed a deficiency. The 1000 IU dosage felt like a safe starting point—not too overwhelming but enough to address my needs.

The softgels are tiny and genuinely easy to swallow (no weird aftertaste or fishy burps, which I’ve experienced with other brands). I toss one in with my morning coffee, and it’s become as routine as brushing my teeth. After three months, my winter fatigue eased up noticeably—I’m not dragging through afternoons like before.

I do wish the label clarified the D3 source (lanolin? lichen?). As a vegetarian, that matters to me. The rice flour filler also feels unnecessary—why add carbs to a vitamin? Still, the convenience of 120 capsules (a solid 4-month supply) and the lack of side effects keep me repurchasing.

Pro tip: Pair these with a calcium-rich breakfast. I noticed less joint stiffness when I started having yogurt with them versus taking them alone. For under $15, it’s a no-fuss way to tackle deficiencies—just don’t expect miracles overnight.