D3 + K2 plus Vitamin A
D3 + K2 plus Vitamin A and 3 near-identical products are sold under 3 different brand names — a exact-twin Formula Twins cluster.
| Product | Brand |
|---|---|
| D3 + K2 plus Vitamin A | Natural Rhythm |
| Osteo A-D-K Vitamin A,D3 and K2 (as MK-7) | NHC Natural Healthy Concepts |
| A-D-K | Davinci Laboratories |
| A-D-K | Davinci Laboratories |
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