The linked HealthCanal article is written and reviewed by two RDNs. Note that an RDN (Registered Dietitian Nutritionist) is the only nationally recognized credential for expertise in food and nutrition. I suggest you read the article yourself to get a full picture of what this product is like.
Towards the end of the article, it is noted that "most of the ingredients are present in such small amounts that they are unlikely to have any positive health benefits individually."
I could not find any scientifically-reviewed studies testing the effects of the Bloom Greens and Superfoods mix specifically. There is likely no real, conclusive proof that this product confers the benefits it claims. There are certainly healthy ingredients inside, but no evidence that there are enough of them to have a real effect in users. On the plus side, since the Bloom Greens mix is a powder, yes, it is technically easier to prepare than chopping up vegetables.
RATING: Exaggerated
HealthCanal Article: https://www.healthcanal.com/nutrition/bloom-nutrition-reviews
EXTRA:
Here I address specifically the claims that the mix can make your "skin glow" or help you keep a "flat stomach."
Regarding glowing skin:
https://blog.clr-berlin.com/the-skin-behind-the-glow/
This article discusses what "glowing skin" is. In summary, glowing skin is smooth and moisturized, as water reflects light and smoother surfaces are less likely to absorb light (making them more likely to be shiny). The HealthCanal article does not list anything regarding moisturized or smooth skin as a health benefit of any of the ingredients in the Bloom mix.
Regarding flat stomachs:
One pro of this product listed in the article is that it "contains probiotics and digestive enzymes" which aid in digestion. One mix of probiotics listed in the article can "significantly improve symptoms of irritable bowel syndrome," one symptom being bloating. Bloating can make your stomach appear larger, so it is hypothetically possible that this product could make your stomach flatter. However, not everyone is affected by irritable bowel syndrome, so this certainly does not apply to everyone. Also, as said before there may not be enough of the probiotic cultures to really make a difference.
When it comes to weight loss for a flat stomach, one ingredient in the Bloom mix, spirulina, has been shown to aid weight loss. From the below scientific study, "Yousefi et al studied 52 obese participants with a body mass index (BMI) >25–40 kg/m2 who were randomised to 2 g spirulina per day with a restricted caloric diet versus placebo consisting of a restricted calorie diet for 12 weeks. Participants in the spirulina group had significantly lower body weight of -3.22±1.97kg." However, looking at the nutrition facts, the Bloom mix only has spirulina in its "Green Superfood Blend" among many other ingredients. Each serving of the Bloom mix only has 1.367g of Green Superfood Blend. Spirulina is only a fraction of this, so if you know math, you know that a daily serving of Bloom mix (the Bloom company recommends one serving daily) is definitely not providing you 2g of spirulina daily like the people in the study. As you can see, there are likely not enough of the ingredients to make a significant difference.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7061888/
Final words:
When it comes to dietary supplements, in the future, it is good to do your own research. You cannot always trust supplement sellers' claims. As detailed in the following link, the FDA (Food and Drug Administration) does NOT test dietary supplements for safety or effectiveness before creators can sell them. They leave the responsibility of testing to the companies that sell the supplements, meaning there is no legal requirement to tell the truth about what your product does. The government only steps in if there are reported harmful effects. If you need nutrition advice, look for a certified RD (registered dietician) or RDN.
https://www.fda.gov/consumers/consumer-updates/it-really-fda-approved#:~:text=The%20FDA%20doesn't%20approve%20dietary%20supplements.,without%20even%20notifying%20the%20FDA.