http://trndmonitor.com/dairy-spotlight-latta-russian-kefir-acidophilus-live-probiotic-yogurt/ "
GMO & gluten free claim:

Our (Latta USA organic products) proprietary mix of 12 (of 42 known kefir) probiotic strains include: 
Bido-bacterium: 1.(short) 2.longum, Lactobacillus: 3.acidophilus 4.bulgaricus 5.paracasei 6.rhamnosus,
Lactococcus lactis subsp: 7.cremoris 8.lactis 9.lactis biovar diacetylactis, Leuconostoc:
10.mesenteroides 11.pseudomesenteroides, 12.Streptococcus thermophiles."

(Latta also carries non-organic kefir & yogurt - some with 4 probiotic strains, superior to the 2 strain probiotic brands.)
http://www.cornucopia.org/yogurt-scorecard/#sthash.foy0jLpv.dpuf rating score card relating to ORGANIC yogurt & ORGANIC kefir.

Magnesium
@ silverbulletin.utopiasilver.com/naturally-treat-digestive-problems-with-tissue-cell-salts/
Consider Epsom salts.

O'Neill, Barbara @ https://www.youtube.com/shorts/g3t43iut-1g #20 - 7/1/2023 - 5 star *****
+ 2018 @ https://www.youtube.com/watch?v=YiKdNbo40Cw
@ Misty Mountain Health Retreat https://www.mmh.com.au + https://www.mmh.com.au/contact-misty -
"
The gastrointestinal tract is about 26 feet long, starts at the mouth & ends at the rectum."
O'Neill, Barbara Self-Heal chapter #1 @ https://www.amazon.com.au/Design-Micro-Organisms-Health-Barbara-ONeill-ebook/dp/B06XSPWFXN?asin=B06XSPWFXN&revisionId=c46fd44e&format=2&depth=1 GREAT
O'Neill, Barbara ITENARY @ https://www.selfhealbydesign.com/?page_id=342 @ https://www.selfhealbydesign.com/
O'Neill @ https://archive.org/details/compass-barbara-oneill (NOT sure if downloads are safe.)
O'Neill @ https://www.mealgarden.com/social/article/healing-the-gut-from-sickness-to-health-barbara-on/ 
+ other available online videos by Barbara.