As someone with a bit more knowledge in the field, can you help inform me: I thought the consensus was that beta amyloid was a second order effect of Alzheimer

As someone with a bit more knowledge in the field, can you help inform me: I thought the consensus was that beta amyloid was a second order effect of Alzheimers. Didn't we (as in the medical community) establish that it was now likely to be a result of chronic sugar toxicity? I'll find the relevant study