Keep this in mind: Every single body is different. Your results will depend upon your environment and your habits. If you sit on the couch with a bag of Doritos all day, don't expect sea moss to give you energy. If you slam caffeine every night, don't expect magnesium to help you sleep.
Consistency is key. Make sure you have a daily supplement schedule and are sticking to it. If you skip days, it will negatively impact your outcome.
Month 1 - your body is adjusting to the nutrients. Most will notice energy changes, or better sleep. This is an adjustment phase for the body.
Month 2- your body is re-balancing and benefiting from consistent nutrient intake. You may notice an increased difference in benefits from month 1. This is where anti-inflammatory responses may begin to engage.
Month 3+ - months 3-6 is when the body really starts to adjust and build onto what you are putting into it. This is where the lasting benefits live and compound. What you notice in this time should carry with you if you stay consistent with dosing and a healthy lifestyle.
And also, if you don't get the results you're looking for, don't throw the baby out with the bathwater! For example, if your magnesium isn't helping your cramps because you have an underlying dehydration issue you aren't aware of, does that mean you should quit taking magnesium and restrict your body of the mineral? Probably not.