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calcium magnesium zinc and vitamin d
Skip itPrices mostly outside the sweet spot ($4.87–$14.01) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible17.1%search→purchase rate — share of searches ending in a sale
Brand share
Okay81%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,332avg incumbent reviews — the moat a new listing must climb
Avg price
Okay£9.27avg listing price — sweet spot $15–$100
Market size
Okay£110K£110K/yr · 69K searches
Competition
Bad73%top-5 click share — a locked-up shelf
Growth
Bad-13.1%90-day search growth — must beat 0% to launch
Price range
Bad£4.87–£14.01cheapest to priciest tracked listing — scored on the share inside $15–$100