Hi-D™ is an Australian whole-food vitamin D brand using certified organic shiitake mushrooms as a natural source of vitamin D2. Through specialised UV light technology, Hi-D converts naturally occurring compounds in the mushrooms into vitamin D while preserving the whole fruiting body. The result is a vegan, minimally processed supplement without chemical extraction, unnecessary fillers or artificial additives.
Explore Hi-D mushroom vitamin D supplements in 1000 IU, 3000 IU and 5000 IU strengths, alongside a formula featuring naturally occurring beta-glucans. Made in Australia with an emphasis on organic ingredients, sustainability and independent quality testing, Hi-D offers plant-based nutritional support for healthy bones, muscles, immune function and everyday wellbeing.
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ResetHi-D: Whole-Food Vitamin D from Organic Shiitake Mushrooms
Hi-D™ is an Australian supplement brand bringing a distinctive whole-food approach to vitamin D nutrition. Rather than using conventional animal-derived vitamin D3 or isolated synthetic ingredients, Hi-D produces plant-based vitamin D2 from certified organic shiitake mushrooms. Developed by a family-owned business in the Northern Rivers region of New South Wales, the range combines nutritional science, sustainable sourcing and a commitment to clean, minimally processed ingredients.
Hi-D uses specialised ultraviolet light technology to activate naturally occurring ergosterol in shiitake mushrooms, converting it into vitamin D2 while retaining the whole mushroom fruiting body. The resulting powder contains naturally occurring mushroom nutrients without chemical extraction, unnecessary fillers or artificial additives. Available in strengths including 1000 IU, 3000 IU and 5000 IU, the range offers different options for vitamin D supplementation. A specialised 1000 IU formula with beta-glucans provides an additional whole-food option. The appropriate strength depends on individual vitamin D status, dietary intake and health needs, with higher-dose supplementation best guided by a healthcare professional.
Vitamin D contributes to normal calcium absorption, bone and muscle health, and healthy immune function, making adequate vitamin D status important throughout life. Hi-D offers a vegan alternative for people seeking whole-food supplementation, particularly where dietary intake or sun exposure may be insufficient. The brand also emphasises organic cultivation, sustainable production, recyclable packaging and independent quality testing. Explore Hi-D at Windback NZ for carefully developed mushroom-derived vitamin D supplements that bring together whole-food nutrition, plant-based innovation and responsible manufacturing.
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