Three male entrepreneurs have launched a multivitamin company with just one main product — and it has sold out twice in the past six months.

Eddy Simpson and Tom Birmingham, hosts of the renowned Hello Sport podcast, teamed up with their schoolmate and entrepreneur Chris Mushan to launch Good Day multivitamin, a product that’s rapidly transforming the health landscape.

In just six months the $49.95 pack of powdered mixture, in easy-to-take individual sachets, has achieved remarkable success with 237 per cent growth in sales.

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More than 100 units are sold daily on the website alone with more than 10,000 customers within the first four months.

Inspired by its creators’ personal health journeys and marathon training, the Good Day multivitamin stands out for its fresh, accessible approach to wellness.

Good Day features your daily dose of vitality, packed into a single-serve sachet for ultimate convenience.

So, what’s inside? There are B vitamins for a burst of energy, vitamin C to boost your immunity, folate for healthy cells, B12 for cognitive function, as well as magnesium, zinc, turmeric and rhodiola rosea for “stress-busting zen”.

There are a broad range of firm followers enjoying the powder, which should be emptied into a 500ml glass of cold water to taste.

“Have been using Good Day since hearing about it on the Bloke podcast,” one fan said.

“I feel a noticeable difference in my energy levels throughout the day. Even gave it to my girlfriend and she says the same thing.”

Another customer said: “Actually felt a lot sharper during the day when taking Good Day rather than regular multivitamins that claim the same thing.”

And another person added: “Brilliant. Liquid gold. Great flavour, easily dissolves in water. Delivers consistent energy load. A couple of family members have tried and are impressed too.”

To try it for yourself visit the Good Day website here.