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Label Element Value
Prospectus: rr_ProspectusTable  
Supplement Text Block jhvit-20150701_SupplementTextBlock
 
John Hancock Variable Insurance Trust
Supplement dated July 1, 2015
to the Prospectus dated April 27, 2015
 
Alpha Opportunities Trust (the "fund")
 
The table under the heading "Fees and expenses" for the fund has been amended and restated as follows:
 
Annual fund operating expenses (%) 
(expenses that you pay each year as a percentage of the value of your investment)
Series I
Series II
Series NAV
Management fee1
0.95
0.95
0.95
Distribution and service (Rule 12b-1) fees
0.05
0.25
0.00
Other expenses
  0.032
0.033
0.032
Total annual fund operating expenses
1.03
1.23
0.98
 
1 
"Management fee" has been restated to reflect the contractual management fee schedule effective July 1, 2015. 
2 
"Other expenses" have been restated from fiscal year amounts to reflect current fees and expenses.
3
"Other expenses" have been estimated for the first year of operations of the fund's Series II shares.
 
 
The table under "Expense example" for the fund has been amended and restated as follows:
 
Expenses ($)
Series I
Series II
Series NAV
1 year
105
125
100
3 years
328
390
312
5 years
569
676
542
10 years
1,259
1,489
1,201
 
 
International Core Trust (the "fund")
The table under the heading "Fees and expenses" for the fund has been amended and restated as follows:
 
Annual fund operating expenses (%) 
(expenses that you pay each year as a percentage of the value of your investment)
Series I
Series II
Series NAV
Management fee1
0.87
0.87
0.87
Distribution and service (Rule 12b-1) fees
0.05
0.25
0.00
Other expenses2
0.08
0.08
0.08
Total annual fund operating expenses
1.00
1.20
0.95
 
1
"Management fee" has been restated to reflect the contractual management fee schedule effective July 1, 2015. 
2
"Other expenses" have been restated from fiscal year amounts to reflect current fees and expenses.
 
The table under "Expense example" for the fund has been amended and restated as follows:
 
Expenses ($)
Series I
Series II
Series NAV
1 year
102
122
97
3 years
318
381
303
5 years
552
660
525
10 years
1,225
1,455
1,166
 
­ | (Alpha Opportunities Trust)  
Prospectus: rr_ProspectusTable  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual fund operating expenses (%) (expenses that you pay each year as a percentage of the value of your investment)
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent "Other expenses" have been restated from fiscal year amounts to reflect current fees and expenses.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates "Other expenses" have been estimated for the first year of operations of the fund's Series II shares.
­ | (Alpha Opportunities Trust) | Series I  
Prospectus: rr_ProspectusTable  
Management fee [1] rr_ManagementFeesOverAssets 0.95%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.05%
Other expenses [2] rr_OtherExpensesOverAssets 0.03%
Total annual fund operating expenses rr_ExpensesOverAssets 1.03%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 105
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 328
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 569
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,259
­ | (Alpha Opportunities Trust) | Series II  
Prospectus: rr_ProspectusTable  
Management fee [1] rr_ManagementFeesOverAssets 0.95%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses [3] rr_OtherExpensesOverAssets 0.03%
Total annual fund operating expenses rr_ExpensesOverAssets 1.23%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 125
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 390
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 676
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,489
­ | (Alpha Opportunities Trust) | Series NAV  
Prospectus: rr_ProspectusTable  
Management fee [1] rr_ManagementFeesOverAssets 0.95%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses [2] rr_OtherExpensesOverAssets 0.03%
Total annual fund operating expenses rr_ExpensesOverAssets 0.98%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 100
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 312
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 542
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,201
­ | (International Core Trust)  
Prospectus: rr_ProspectusTable  
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual fund operating expenses (%) (expenses that you pay each year as a percentage of the value of your investment)
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent "Other expenses" have been restated from fiscal year amounts to reflect current fees and expenses.
­ | (International Core Trust) | Series I  
Prospectus: rr_ProspectusTable  
Management fee [1] rr_ManagementFeesOverAssets 0.87%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.05%
Other expenses [2] rr_OtherExpensesOverAssets 0.08%
Total annual fund operating expenses rr_ExpensesOverAssets 1.00%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 102
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 318
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 552
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,225
­ | (International Core Trust) | Series II  
Prospectus: rr_ProspectusTable  
Management fee [1] rr_ManagementFeesOverAssets 0.87%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses [2] rr_OtherExpensesOverAssets 0.08%
Total annual fund operating expenses rr_ExpensesOverAssets 1.20%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 122
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 381
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 660
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,455
­ | (International Core Trust) | Series NAV  
Prospectus: rr_ProspectusTable  
Management fee [1] rr_ManagementFeesOverAssets 0.87%
Distribution and service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses [2] rr_OtherExpensesOverAssets 0.08%
Total annual fund operating expenses rr_ExpensesOverAssets 0.95%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 97
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 303
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 525
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,166
[1] "Management fee" has been restated to reflect the contractual management fee schedule effective July 1, 2015.
[2] "Other expenses" have been restated from fiscal year amounts to reflect current fees and expenses.
[3] "Other expenses" have been estimated for the first year of operations of the fund's Series II shares.