The short answer. There isn't much data on Animal Pak yet — 8 mentions, 2 with a clear outcome — so treat these numbers as anecdotal. There is a moderate body of research — 21 meta-analyses and 0 trials.
From 8 mentions in total — the rest didn't say how it went and aren't counted.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: K-Ras and p53 mutation both contribute to biliary tract carcinoma. K-Ras mutation, however, has a much higher frequency compared to p53 inactivation in such cancers.
PubMed 34974575 ↗Conclusion: Calcium uptake by TRPV5 was directly inhibited by magnesium and low pH. In summary, these data are compatible with the hypothesis that urinary magnesium directly inhibits renal calcium absorption, which can be negated by high luminal pH, and that this regulation likely takes place in the distal tubule.
PubMed 18448585 ↗Conclusion: Thus, on a restricted diet, a clear demarcation was seen between urinary calcium excretion of kidney stone formers with absorptive hypercalciuria type I and normal individuals. When dietary variables are controlled, the classic definition of hypercalciuria of nephrolithiasis appears valid.
PubMed 21775970 ↗Conclusion: In traditional medicine, this plant has been prescribed in many disorders; therefore, clinical trials on the compounds ofgundelia seem essential. This study gives an overview of traditional uses of gundelia, irrespective of pharmacological studies on its effects.
PubMed 24511731 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“I am really happy with taking the Universal Animal Pak every morning... I always feel much better throughout the day”
“My biggest issues with animal pak are the following: Vitamin D is obnoxiously low... The entire B-complex is dosed extremely high... 400mg of magnesium oxide taken at once is a laxative”
“Animal PAK (its supplement for bodybuilders but I highly recommend it as it has some nootropic agents which has effect on me even when taken alone”
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 3, 2026. How we rate