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66 In 53 sheltered dogs exhibiting high anxiety levels, eating food with nearly four times more tryptophan than standard food for six weeks reduced abnormal social behaviors associated with stress

This effect can cause or worsen gastroparesis

Additionally, as I shared above, low B12 can contribute to lowered serotonin and dopamine levels, two neurotransmitters which can help us to feel more engaged, motivated and focused and I think most of us know what it feels like to be the opposite of that

During the first 4 weeks, you may notice mild appetite changes and early side effects like nausea, bloating, diarrhea, constipation, and gastrointestinal problems