The calcium to phosphorus (not phosphate) ratio in most insects (some soil dwelling insect are exceptions) is usually somewhere between 0.1:1 to 0.5:1 which is insufficient to support proper bone growth. Improper ratios do not prevent calcium uptake but proper calcium metabolism for bone development. The end result is that the calcium to phosphorus ratio in the diet should be between 1:1 and 2:1 (and close to 1.5:1 may be the best) for the best bone growth.

While the supplement has the proper Ca ratio, the ratio of vitamin A to D3 is different than what is typically recommended. According to the literature, the ratio of vitamin A to D3 should be as close to 10:1 as possible...

Ideally you should choose a supplement that contains a ratio of vitamin A to D3 to E as close to 10:1:0.1 as possible as these vitamins compete with each other for uptake.

There are several good supplements out there depending if you want to work with a 2 part or a complete supplement.

Ed