Fenugreek and other herbs can be taken quite safely in recommended dosages. When ingesting herbs or herbal powders in foods or teas, it's more difficult to ingest too much. However, when you are taking tablets or herbal extracts in capsules, it's easier to consume too much. Mothers may try to quickly increase their milk supply, so they double up their dose of herbal extracts and this could cause problems. The Majka Nourishing Lactation Bites contains the right amount of Fenugreek. Fenugreek has been used as a galactagogue by humans for thousands of years in many countries.
https://www.ncbi.nlm.nih.gov/books/NBK501779/
https://www.ncbi.nlm.nih.gov/pubmed/23012383