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Hormones affecting diet/cravings

There's not been much discussion about general women's health and nutrition in relation to hormone changes over the course of the cycle. I wonder whether there is any evidence in this field, how to support the body with nutrition over the course of the cycle or how they affect hunger, but also how to manage the intense cravings often rising before menstruation.

What can we make of gut microbiome research?

Hello, Recently, gut microbiome research and its application in diet and lifestyle advice has been called into question due to stool samples lacking in their capability to represent the actual intestinal tract (https://www.nature.com/articles/s41586-023-05989-7). I'm now wondering what to believe of all the "science-backed" messages out in the dietetics/nutrition world about "eating to improve your microbiome" and its associations with disease. How do we interpret this new evidence - do we have to throw out previous research? Thanks :)

Homocysteine

In the alternative health space it is quite popular to say that Homocysteine is causal for atherosclerosis while ApoB/LDL-P is not. There are some studies showing association with Homocysteine but also that reducing Homocysteine does not reduce risk (but were trials long enough or happened at too late a stage to make a statistically significant difference? ). Would be interested to find out more about the current science on this.

Fish contamination

How real are heavy metal and plastic contamination of fish? What are the effects?

Relationship between diet and (male, female) fertility

What does the literature currently show about the role of diet (if any) in fertility? For example, are there any trials researching either retrospectively or prospectively if there is a dietary pattern that is correlated with male sperm count?